Refactor database models to use server defaults for boolean and timestamp fields

- Updated `TimestampMixin` to use `server_default` for `created_at` and `updated_at` fields. - Modified various models in the `fa_classes`, `doc_types_dig`, `ports`, `units_of_measure`, `invoices`, `parts`, `trailers`, `licenses`, `tenants`, and `user_tenant` modules to set `server_default` for boolean fields and other relevant fields. - Adjusted the `trailer_types` model to change the schema from `a76` to `public`. - Implemented database migration execution during application startup in `main.py`. - Removed old Alembic migration execution logic from the entrypoint script. - Updated seed data for units of measure and removed unused seed files.
2026-01-14 15:54:37 -06:00
parent afb3669c59
commit 4079a0cc0f
21 changed files with 329 additions and 639 deletions
--- a/backend/alembic/versions/531bf8cdae06_create_material_types_table.py
+++ b/backend/alembic/versions/531bf8cdae06_create_material_types_table.py
@@ -1,333 +0,0 @@
-"""create material_types table
-
-Revision ID: 531bf8cdae06
-Revises:
-Create Date: 2025-10-19 18:23:39.613953
-
-"""
-
-# pylint: disable=no-member
-
-
-from typing import Sequence, Union
-
-import sqlalchemy as sa
-from alembic import op
-
-# revision identifiers, used by Alembic.
-revision: str = "531bf8cdae06"
-down_revision: Union[str, Sequence[str], None] = None
-branch_labels: Union[str, Sequence[str], None] = None
-depends_on: Union[str, Sequence[str], None] = None
-
-
-def upgrade() -> None:
-    """Upgrade schema."""
-    # ### commands auto generated by Alembic - please adjust! ###
-    op.create_table(
-        "containers",
-        sa.Column("key", sa.String(length=3), nullable=False),
-        sa.Column("description", sa.String(length=500), nullable=False),
-        sa.PrimaryKeyConstraint("key", name="containers_pkey"),
-        schema="public",
-    )
-    op.create_table(
-        "countries",
-        sa.Column("m3_key", sa.String(length=3), nullable=False),
-        sa.Column("mex_key", sa.String(length=2), nullable=False),
-        sa.Column("ame_key", sa.String(length=2), nullable=False),
-        sa.Column("description_es", sa.String(length=50), nullable=False),
-        sa.Column("description_en", sa.String(length=50), nullable=False),
-        sa.PrimaryKeyConstraint("m3_key", name="countries_pkey"),
-        schema="public",
-    )
-    op.create_index(
-        "ak_country_ame", "countries", ["ame_key"], unique=True, schema="public"
-    )
-    op.create_table(
-        "currency_types",
-        sa.Column("code", sa.String(length=3), nullable=False),
-        sa.Column("currency_name", sa.String(length=15), nullable=False),
-        sa.Column("country_description", sa.String(length=50), nullable=False),
-        sa.PrimaryKeyConstraint("code", name="currency_types_pkey"),
-        schema="public",
-    )
-    op.create_table(
-        "customs_sections",
-        sa.Column("customs_code", sa.String(length=3), nullable=False),
-        sa.Column("section_name", sa.String(length=255), nullable=False),
-        sa.PrimaryKeyConstraint("customs_code", name="customs_code_pkey"),
-        schema="public",
-    )
-    op.create_table(
-        "customs_warehouses",
-        sa.Column("key", sa.String(length=3), nullable=False),
-        sa.Column("customs", sa.String(length=100), nullable=False),
-        sa.Column("fiscalized_warehouse", sa.String(length=1000), nullable=False),
-        sa.PrimaryKeyConstraint("key", "customs", name="pk_customs_warehouse"),
-        schema="public",
-    )
-    op.create_table(
-        "incoterms",
-        sa.Column("code", sa.String(length=5), nullable=False),
-        sa.Column("description_es", sa.String(length=256), nullable=False),
-        sa.Column("description_en", sa.String(length=256), nullable=False),
-        sa.PrimaryKeyConstraint("code", name="incoterms_pkey"),
-        schema="public",
-    )
-    op.create_table(
-        "invoice_types",
-        sa.Column("key", sa.String(length=5), nullable=False),
-        sa.Column("description", sa.String(length=50), nullable=False),
-        sa.Column("note", sa.String(length=500), nullable=False),
-        sa.Column("type", sa.String(length=15), nullable=False),
-        sa.Column("operation", sa.String(length=5), nullable=False),
-        sa.PrimaryKeyConstraint("key", name="invoice_types_pkey"),
-        schema="public",
-    )
-    op.create_table(
-        "material_types",
-        sa.Column("key", sa.String(length=10), nullable=False),
-        sa.Column("type", sa.String(length=15), nullable=False),
-        sa.Column("description", sa.String(length=256), nullable=False),
-        sa.PrimaryKeyConstraint("key", name="material_types_pkey"),
-        schema="public",
-    )
-    op.create_table(
-        "payment_methods",
-        sa.Column("key", sa.String(length=2), nullable=False),
-        sa.Column("description", sa.String(length=100), nullable=False),
-        sa.PrimaryKeyConstraint("key", name="payment_methods_pkey"),
-        schema="public",
-    )
-    op.create_table(
-        "pedimento_codes",
-        sa.Column("code", sa.String(length=3), nullable=False),
-        sa.Column("description", sa.String(length=250), nullable=False),
-        sa.PrimaryKeyConstraint("code", name="pedimento_codes_pkey"),
-        schema="public",
-    )
-    op.create_table(
-        "pedimento_regimens",
-        sa.Column("code", sa.String(length=3), nullable=False),
-        sa.Column("description", sa.String(length=100), nullable=False),
-        sa.PrimaryKeyConstraint("code", name="pedimento_regimens_pkey"),
-        schema="public",
-    )
-    op.create_table(
-        "sectors",
-        sa.Column("key", sa.String(length=8), nullable=False),
-        sa.Column("description", sa.String(length=150), nullable=False),
-        sa.Column("authorized", sa.SmallInteger(), nullable=False),
-        sa.PrimaryKeyConstraint("key", name="sectors_pkey"),
-        schema="public",
-    )
-    op.create_table(
-        "states",
-        sa.Column("m3_key", sa.String(length=3), nullable=False),
-        sa.Column("description", sa.String(length=50), nullable=False),
-        sa.Column("mex_key", sa.String(length=3), nullable=True),
-        sa.Column("ame_key", sa.String(length=2), nullable=True),
-        sa.PrimaryKeyConstraint("m3_key", "description", name="states_pkey"),
-        schema="public",
-    )
-    op.create_table(
-        "transport_modes",
-        sa.Column("key", sa.String(length=3), nullable=False),
-        sa.Column("name", sa.String(length=30), nullable=False),
-        sa.PrimaryKeyConstraint("key", name="transport_modes_pkey"),
-        schema="public",
-    )
-    op.create_table(
-        "transport_types",
-        sa.Column("transport_code", sa.String(length=2), nullable=False),
-        sa.Column("description", sa.String(length=100), nullable=False),
-        sa.PrimaryKeyConstraint("transport_code", name="transport_types_pkey"),
-        schema="public",
-    )
-    op.create_table(
-        "valuation_methods",
-        sa.Column("key", sa.String(length=2), nullable=False),
-        sa.Column("description", sa.String(length=200), nullable=False),
-        sa.PrimaryKeyConstraint("key", name="valuation_methods_pkey"),
-        schema="public",
-    )
-    op.create_table(
-        "code_pedimento_regimens",
-        sa.Column("id", sa.Integer(), nullable=False),
-        sa.Column("pedimento_code", sa.String(length=3), nullable=False),
-        sa.Column("regimen_code", sa.String(length=3), nullable=False),
-        sa.Column("type_code", sa.String(length=1), nullable=True),
-        sa.ForeignKeyConstraint(
-            ["pedimento_code"], ["public.pedimento_codes.code"], name="fk_codeped"
-        ),
-        sa.ForeignKeyConstraint(
-            ["regimen_code"], ["public.pedimento_regimens.code"], name="fk_regimenped"
-        ),
-        sa.PrimaryKeyConstraint("id", name="clave_pedimento_regimens_pkey"),
-        schema="public",
-    )
-    
-    # Tablas de Unidades de Medida (A76)
-    
-    # 1. Tabla: unit_of_measure_ace (ACE Units)
-    op.create_table(
-        'unit_of_measure_ace',
-        sa.Column('id', sa.Integer(), autoincrement=True, nullable=False),
-        sa.Column('code', sa.String(length=4), nullable=False),
-        sa.Column('description', sa.String(length=49), nullable=True),
-        sa.Column('created_at', sa.DateTime(), server_default=sa.text('now()'), nullable=False),
-        sa.Column('updated_at', sa.DateTime(), server_default=sa.text('now()'), nullable=False),
-        sa.Column('deleted_at', sa.DateTime(), nullable=True),
-        sa.PrimaryKeyConstraint('id'),
-        sa.UniqueConstraint('code', name='uq_uom_ace_code'),
-        schema='a76'
-    )
-    
-    # 2. Tabla: unit_of_measure_oma (OMA Units)
-    op.create_table(
-        'unit_of_measure_oma',
-        sa.Column('id', sa.Integer(), autoincrement=True, nullable=False),
-        sa.Column('code', sa.String(length=10), nullable=False),
-        sa.Column('description', sa.String(length=200), nullable=True),
-        sa.Column('created_at', sa.DateTime(), server_default=sa.text('now()'), nullable=False),
-        sa.Column('updated_at', sa.DateTime(), server_default=sa.text('now()'), nullable=False),
-        sa.Column('deleted_at', sa.DateTime(), nullable=True),
-        sa.PrimaryKeyConstraint('id'),
-        sa.UniqueConstraint('code', name='uq_uom_oma_code'),
-        schema='a76'
-    )
-    
-    # 3. Tabla: unit_of_measure_american (American Units)
-    op.create_table(
-        'unit_of_measure_american',
-        sa.Column('id', sa.Integer(), autoincrement=True, nullable=False),
-        sa.Column('code', sa.String(length=3), nullable=False),
-        sa.Column('description', sa.String(length=40), nullable=True),
-        sa.Column('created_at', sa.DateTime(), server_default=sa.text('now()'), nullable=False),
-        sa.Column('updated_at', sa.DateTime(), server_default=sa.text('now()'), nullable=False),
-        sa.Column('deleted_at', sa.DateTime(), nullable=True),
-        sa.PrimaryKeyConstraint('id'),
-        sa.UniqueConstraint('code', name='uq_uom_american_code'),
-        schema='a76'
-    )
-    
-    # 4. Tabla: unit_of_measure_customs (Customs Units)
-    op.create_table(
-        'unit_of_measure_customs',
-        sa.Column('id', sa.Integer(), autoincrement=True, nullable=False),
-        sa.Column('code', sa.String(length=10), nullable=False),
-        sa.Column('description', sa.String(length=50), nullable=True),
-        sa.Column('scaii_unit_code', sa.String(length=5), nullable=True),
-        sa.Column('created_at', sa.DateTime(), server_default=sa.text('now()'), nullable=False),
-        sa.Column('updated_at', sa.DateTime(), server_default=sa.text('now()'), nullable=False),
-        sa.Column('deleted_at', sa.DateTime(), nullable=True),
-        sa.PrimaryKeyConstraint('id'),
-        sa.UniqueConstraint('code', name='uq_uom_customs_code'),
-        schema='a76'
-    )
-    
-    # 5. Tabla: units_of_measure (Main Unit of Measure)
-    op.create_table(
-        'units_of_measure',
-        sa.Column('id', sa.Integer(), autoincrement=True, nullable=False),
-        sa.Column('code', sa.String(length=10), nullable=False),
-        sa.Column('description', sa.String(length=100), nullable=True),
-        sa.Column('description_en', sa.String(length=100), nullable=True),
-        sa.Column('customs_code', sa.String(length=10), nullable=True),
-        sa.Column('american_code', sa.String(length=3), nullable=True),
-        sa.Column('ace_code', sa.String(length=4), nullable=True),
-        sa.Column('oma_code', sa.String(length=10), nullable=True),
-        sa.Column('tenant_id', sa.Integer(), nullable=False),
-        sa.Column('company_id', sa.Integer(), nullable=False),
-        sa.Column('created_at', sa.DateTime(), server_default=sa.text('now()'), nullable=False),
-        sa.Column('updated_at', sa.DateTime(), server_default=sa.text('now()'), nullable=False),
-        sa.Column('deleted_at', sa.DateTime(), nullable=True),
-        sa.ForeignKeyConstraint(
-            ['customs_code'],
-            ['a76.unit_of_measure_customs.code'],
-            name='fk_uom_customs'
-        ),
-        sa.ForeignKeyConstraint(
-            ['american_code'],
-            ['a76.unit_of_measure_american.code'],
-            name='fk_uom_american'
-        ),
-        sa.ForeignKeyConstraint(
-            ['ace_code'],
-            ['a76.unit_of_measure_ace.code'],
-            name='fk_uom_ace'
-        ),
-        sa.ForeignKeyConstraint(
-            ['oma_code'],
-            ['a76.unit_of_measure_oma.code'],
-            name='fk_uom_oma'
-        ),
-        sa.PrimaryKeyConstraint('id'),
-        sa.UniqueConstraint('code', 'tenant_id', 'company_id', name='uq_uom_code'),
-        schema='a76'
-    )
-    
-    # 6. Tabla: units_of_measure_general (General/Conversion Units)
-    op.create_table(
-        'units_of_measure_general',
-        sa.Column('id', sa.Integer(), autoincrement=True, nullable=False),
-        sa.Column('code', sa.String(length=10), nullable=False),
-        sa.Column('description', sa.String(length=100), nullable=True),
-        sa.Column('conversion_factor', sa.Numeric(precision=13, scale=6), nullable=True),
-        sa.Column('mexico_unit', sa.String(length=10), nullable=True),
-        sa.Column('american_unit_code', sa.String(length=5), nullable=True),
-        sa.Column('customs_code', sa.String(length=10), nullable=True),
-        sa.Column('ace_code', sa.String(length=4), nullable=True),
-        sa.Column('tenant_id', sa.Integer(), nullable=False),
-        sa.Column('company_id', sa.Integer(), nullable=False),
-        sa.Column('created_at', sa.DateTime(), server_default=sa.text('now()'), nullable=False),
-        sa.Column('updated_at', sa.DateTime(), server_default=sa.text('now()'), nullable=False),
-        sa.ForeignKeyConstraint(
-            ['customs_code'],
-            ['a76.unit_of_measure_customs.code'],
-            name='fk_uom_general_customs'
-        ),
-        sa.ForeignKeyConstraint(
-            ['ace_code'],
-            ['a76.unit_of_measure_ace.code'],
-            name='fk_uom_general_ace'
-        ),
-        sa.PrimaryKeyConstraint('id'),
-        sa.UniqueConstraint('code', 'tenant_id', 'company_id', name='uq_uom_general_code'),
-        schema='a76'
-    )
-    # ### end Alembic commands ###
-
-
-def downgrade() -> None:
-    """Downgrade schema."""
-    # ### commands auto generated by Alembic - please adjust! ###
-    # Eliminar tablas de unidades de medida
-    op.drop_table('units_of_measure_general', schema='a76')
-    op.drop_table('units_of_measure', schema='a76')
-    op.drop_table('unit_of_measure_customs', schema='a76')
-    op.drop_table('unit_of_measure_american', schema='a76')
-    op.drop_table('unit_of_measure_oma', schema='a76')
-    op.drop_table('unit_of_measure_ace', schema='a76')
-    
-    # Eliminar tablas públicas
-    op.drop_table("code_pedimento_regimens", schema="public")
-    op.drop_table("valuation_methods", schema="public")
-    op.drop_table("transport_types", schema="public")
-    op.drop_table("transport_modes", schema="public")
-    op.drop_table("states", schema="public")
-    op.drop_table("sectors", schema="public")
-    op.drop_table("pedimento_regimens", schema="public")
-    op.drop_table("pedimento_codes", schema="public")
-    op.drop_table("payment_methods", schema="public")
-    op.drop_table("material_types", schema="public")
-    op.drop_table("invoice_types", schema="public")
-    op.drop_table("incoterms", schema="public")
-    op.drop_table("customs_warehouses", schema="public")
-    op.drop_table("customs_sections", schema="public")
-    op.drop_table("currency_types", schema="public")
-    op.drop_index("ak_country_ame", table_name="countries", schema="public")
-    op.drop_table("countries", schema="public")
-    op.drop_table("containers", schema="public")
-    # ### end Alembic commands ###
--- a/backend/alembic/versions/7937209f9718_seed_initial_data.py
+++ b/backend/alembic/versions/7937209f9718_seed_initial_data.py
@@ -50,18 +50,37 @@ from api.v1.modules.public.reference_data.transport_modes.seed import (
 from api.v1.modules.public.reference_data.transport_types.seed import (
    seed as transport_types_seed,
 )
+from api.v1.modules.public.reference_data.trailer_types.seed import (
+    seed as trailer_types_seed,
+)
 from api.v1.modules.public.reference_data.valuation_methods.seed import (
    seed as valuation_methods_seed,
 )
-from api.v1.modules.a76.general_catalogs.units_of_measure.seed_med import seed as units_of_measure_seed
-from api.v1.modules.a76.general_catalogs.units_of_measure.seed_ace import seed as ace_seed
-from api.v1.modules.a76.general_catalogs.units_of_measure.seed_oma import seed as oma_seed
-from api.v1.modules.a76.general_catalogs.units_of_measure.seed_ame import seed as ame_seed
-from api.v1.modules.a76.general_catalogs.units_of_measure.seed_adua import seed as adua_seed
+from api.v1.modules.a76.general_catalogs.units_of_measure.seed import (
+    seed as units_of_measure_seed,
+)
+from api.v1.modules.a76.general_catalogs.units_of_measure.seed_ace import (
+    seed as ace_seed,
+)
+from api.v1.modules.a76.general_catalogs.units_of_measure.seed_oma import (
+    seed as oma_seed,
+)
+from api.v1.modules.a76.general_catalogs.units_of_measure.seed_ame import (
+    seed as ame_seed,
+)
+from api.v1.modules.a76.general_catalogs.units_of_measure.seed_adua import (
+    seed as adua_seed,
+)
+from api.v1.modules.core.permissions.seed import (
+    seed_invoices,
+    seed_user,
+    seed_report,
+    seed_roles,
+)

 # revision identifiers, used by Alembic.
 revision: str = "7937209f9718"
-down_revision: Union[str, Sequence[str], None] = "531bf8cdae06"
+down_revision: Union[str, Sequence[str], None] = None
 branch_labels: Union[str, Sequence[str], None] = None
 depends_on: Union[str, Sequence[str], None] = None

@@ -69,25 +88,10 @@ depends_on: Union[str, Sequence[str], None] = None
 def upgrade() -> None:
    """Upgrade schema."""

-    # --- AMPLIAR COLUMNAS ANTES DE INSERTAR DATOS ---
-    op.execute("ALTER TABLE a76.unit_of_measure_ace ALTER COLUMN code TYPE VARCHAR(20);")
-    op.execute("ALTER TABLE a76.unit_of_measure_oma ALTER COLUMN code TYPE VARCHAR(20);")
-    op.execute("ALTER TABLE a76.unit_of_measure_american ALTER COLUMN code TYPE VARCHAR(20);")
-    op.execute("ALTER TABLE a76.unit_of_measure_customs ALTER COLUMN code TYPE VARCHAR(20);")
-    op.execute("ALTER TABLE a76.units_of_measure ALTER COLUMN code TYPE VARCHAR(20);")
-    op.execute("ALTER TABLE a76.units_of_measure ALTER COLUMN customs_code TYPE VARCHAR(20);")
-    op.execute("ALTER TABLE a76.units_of_measure ALTER COLUMN american_code TYPE VARCHAR(20);")
-    op.execute("ALTER TABLE a76.units_of_measure ALTER COLUMN ace_code TYPE VARCHAR(20);")
-    op.execute("ALTER TABLE a76.units_of_measure ALTER COLUMN oma_code TYPE VARCHAR(20);")
-    
-    # --- AGREGAR COLUMNAS deleted_at ---
-    op.execute("ALTER TABLE a76.units_of_measure ADD COLUMN IF NOT EXISTS deleted_at TIMESTAMP;")
-    op.execute("ALTER TABLE a76.units_of_measure_general ADD COLUMN IF NOT EXISTS deleted_at TIMESTAMP;")
-
    # --- UTILIDAD DE FORMATEO ---
    def format_value(val):
-        if val is None or str(val).strip() == '' or str(val).upper() == 'NONE':
-            return 'NULL'
+        if val is None or str(val).strip() == "" or str(val).upper() == "NONE":
+            return "NULL"
        return f"'{str(val).replace(chr(39), chr(39)*2)}'"

    # --- SEEDS PUBLIC (Tablas base) ---
@@ -302,6 +306,20 @@ def upgrade() -> None:
    """
    )

+    values_trailert = ", ".join(
+        [
+            f"('{code}', '{desc.replace(chr(39), chr(39)*2)}')"
+            for code, desc in trailer_types_seed
+        ]
+    )
+    op.execute(
+        f"""
+        INSERT INTO public.trailer_type (trailer_type_key, description) VALUES
+        {values_trailert}
+        ON CONFLICT (trailer_type_key) DO NOTHING;
+    """
+    )
+
    values_vm = ", ".join(
        [
            f"('{key}', '{desc.replace(chr(39), chr(39)*2)}')"
@@ -319,94 +337,159 @@ def upgrade() -> None:
    # --- SEEDS A76 (Unidades de Medida) ---

    # ACE
-    val_ace = ", ".join([f"({format_value(c)}, {format_value(d)})" for c, d in ace_seed])
-    op.execute(f"INSERT INTO a76.unit_of_measure_ace (code, description) VALUES {val_ace} ON CONFLICT ON CONSTRAINT uq_uom_ace_code DO NOTHING;")
+    val_ace = ", ".join(
+        [f"({format_value(c)}, {format_value(d)})" for c, d in ace_seed]
+    )
+    op.execute(
+        f"INSERT INTO a76.unit_of_measure_ace (code, description) VALUES {val_ace} ON CONFLICT ON CONSTRAINT uq_uom_ace_code DO NOTHING;"
+    )

    # OMA
-    val_oma = ", ".join([f"({format_value(c)}, {format_value(d)})" for c, d in oma_seed])
-    op.execute(f"INSERT INTO a76.unit_of_measure_oma (code, description) VALUES {val_oma} ON CONFLICT ON CONSTRAINT uq_uom_oma_code DO NOTHING;")
+    val_oma = ", ".join(
+        [f"({format_value(c)}, {format_value(d)})" for c, d in oma_seed]
+    )
+    op.execute(
+        f"INSERT INTO a76.unit_of_measure_oma (code, description) VALUES {val_oma} ON CONFLICT ON CONSTRAINT uq_uom_oma_code DO NOTHING;"
+    )

    # AME
-    val_ame = ", ".join([f"({format_value(c)}, {format_value(d)})" for c, d in ame_seed])
-    op.execute(f"INSERT INTO a76.unit_of_measure_american (code, description) VALUES {val_ame} ON CONFLICT ON CONSTRAINT uq_uom_american_code DO NOTHING;")
+    val_ame = ", ".join(
+        [f"({format_value(c)}, {format_value(d)})" for c, d in ame_seed]
+    )
+    op.execute(
+        f"INSERT INTO a76.unit_of_measure_american (code, description) VALUES {val_ame} ON CONFLICT ON CONSTRAINT uq_uom_american_code DO NOTHING;"
+    )

    # ADUA (Customs)
-    val_adua = ", ".join([f"({format_value(c)}, {format_value(d)})" for c, d in adua_seed])
-    op.execute(f"INSERT INTO a76.unit_of_measure_customs (code, description) VALUES {val_adua} ON CONFLICT ON CONSTRAINT uq_uom_customs_code DO NOTHING;")
+    val_adua = ", ".join(
+        [f"({format_value(c)}, {format_value(d)})" for c, d in adua_seed]
+    )
+    op.execute(
+        f"INSERT INTO a76.unit_of_measure_customs (code, description) VALUES {val_adua} ON CONFLICT ON CONSTRAINT uq_uom_customs_code DO NOTHING;"
+    )

    # Recolectar códigos adicionales que faltan en los catálogos
    additional_customs = set()
    additional_american = set()
    additional_ace = set()
    additional_oma = set()
-    
+
    existing_customs = {c for c, d in adua_seed}
    existing_american = {c for c, d in ame_seed}
    existing_ace = {c for c, d in ace_seed}
    existing_oma = {c for c, d in oma_seed}
-    
+
    for code, desc, desc_en, customs, american, ace, oma in units_of_measure_seed:
        if customs and customs.strip() and customs not in existing_customs:
-            additional_customs.add((customs, f'Auto-generated from {code}'))
+            additional_customs.add((customs, f"Auto-generated from {code}"))
        if american and american.strip() and american not in existing_american:
-            additional_american.add((american, f'Auto-generated from {code}'))
+            additional_american.add((american, f"Auto-generated from {code}"))
        if ace and ace.strip() and ace not in existing_ace:
-            additional_ace.add((ace, f'Auto-generated from {code}'))
+            additional_ace.add((ace, f"Auto-generated from {code}"))
        if oma and oma.strip() and oma not in existing_oma:
-            additional_oma.add((oma, f'Auto-generated from {code}'))
-    
+            additional_oma.add((oma, f"Auto-generated from {code}"))
+
    # Insertar códigos adicionales
    if additional_customs:
-        val_add_customs = ", ".join([f"({format_value(c)}, {format_value(d)})" for c, d in additional_customs])
-        op.execute(f"INSERT INTO a76.unit_of_measure_customs (code, description) VALUES {val_add_customs} ON CONFLICT ON CONSTRAINT uq_uom_customs_code DO NOTHING;")
-    
+        val_add_customs = ", ".join(
+            [f"({format_value(c)}, {format_value(d)})" for c, d in additional_customs]
+        )
+        op.execute(
+            f"INSERT INTO a76.unit_of_measure_customs (code, description, a76_unit_code) VALUES {val_add_customs} ON CONFLICT ON CONSTRAINT uq_uom_customs_code DO NOTHING;"
+        )
+
    if additional_american:
-        val_add_american = ", ".join([f"({format_value(c)}, {format_value(d)})" for c, d in additional_american])
-        op.execute(f"INSERT INTO a76.unit_of_measure_american (code, description) VALUES {val_add_american} ON CONFLICT ON CONSTRAINT uq_uom_american_code DO NOTHING;")
-    
+        val_add_american = ", ".join(
+            [f"({format_value(c)}, {format_value(d)})" for c, d in additional_american]
+        )
+        op.execute(
+            f"INSERT INTO a76.unit_of_measure_american (code, description) VALUES {val_add_american} ON CONFLICT ON CONSTRAINT uq_uom_american_code DO NOTHING;"
+        )
+
    if additional_ace:
-        val_add_ace = ", ".join([f"({format_value(c)}, {format_value(d)})" for c, d in additional_ace])
-        op.execute(f"INSERT INTO a76.unit_of_measure_ace (code, description) VALUES {val_add_ace} ON CONFLICT ON CONSTRAINT uq_uom_ace_code DO NOTHING;")
-    
+        val_add_ace = ", ".join(
+            [f"({format_value(c)}, {format_value(d)})" for c, d in additional_ace]
+        )
+        op.execute(
+            f"INSERT INTO a76.unit_of_measure_ace (code, description) VALUES {val_add_ace} ON CONFLICT ON CONSTRAINT uq_uom_ace_code DO NOTHING;"
+        )
+
    if additional_oma:
-        val_add_oma = ", ".join([f"({format_value(c)}, {format_value(d)})" for c, d in additional_oma])
-        op.execute(f"INSERT INTO a76.unit_of_measure_oma (code, description) VALUES {val_add_oma} ON CONFLICT ON CONSTRAINT uq_uom_oma_code DO NOTHING;")
+        val_add_oma = ", ".join(
+            [f"({format_value(c)}, {format_value(d)})" for c, d in additional_oma]
+        )
+        op.execute(
+            f"INSERT INTO a76.unit_of_measure_oma (code, description) VALUES {val_add_oma} ON CONFLICT ON CONSTRAINT uq_uom_oma_code DO NOTHING;"
+        )

    # TABLA MAESTRA UOM
-    val_uom = ", ".join([
-        f"({format_value(code)}, {format_value(desc)}, {format_value(desc_en)}, "
-        f"{format_value(customs)}, {format_value(american)}, {format_value(ace)}, {format_value(oma)}, 1, 1)"
-        for code, desc, desc_en, customs, american, ace, oma in units_of_measure_seed
-    ])
-    op.execute(f"""
+    # TODO: Generar tenant_id y company_id correctos
+    val_uom = ", ".join(
+        [
+            f"({format_value(code)}, {format_value(desc)}, {format_value(desc_en)}, "
+            f"{format_value(customs)}, {format_value(american)}, {format_value(ace)}, {format_value(oma)}, 1, 1)"
+            for code, desc, desc_en, customs, american, ace, oma in units_of_measure_seed
+        ]
+    )
+    op.execute("ALTER TABLE a76.units_of_measure DISABLE TRIGGER ALL;")
+    op.execute(
+        f"""
        INSERT INTO a76.units_of_measure 
        (code, description, description_en, customs_code, american_code, ace_code, oma_code, tenant_id, company_id)
        VALUES {val_uom}
        ON CONFLICT (code, tenant_id, company_id) DO NOTHING;
-    """)
+    """
+    )
+    op.execute("ALTER TABLE a76.units_of_measure ENABLE TRIGGER ALL;")
+
+    # --- SEEDS CORE (Permissions) ---
+
+    # Combinar todas las seeds de permisos
+    all_permissions = seed_invoices + seed_user + seed_report + seed_roles
+
+    values_permissions = ", ".join(
+        [
+            f"({format_value(code)}, {format_value(description)}, {format_value(module)}, {format_value(action)})"
+            for code, description, module, action in all_permissions
+        ]        
+    )
+
+    if values_permissions:
+        op.execute(
+            f"""
+            INSERT INTO core.permissions (code, description, module, action)
+            VALUES {values_permissions}
+            ON CONFLICT (code) DO NOTHING;
+        """
+        )


 def downgrade() -> None:
    """Downgrade schema."""

-    op.execute("DELETE FROM a76.units_of_measure;")
-    op.execute("DELETE FROM a76.unit_of_measure_customs;")
-    op.execute("DELETE FROM a76.unit_of_measure_american;")
-    op.execute("DELETE FROM a76.unit_of_measure_oma;")
-    op.execute("DELETE FROM a76.unit_of_measure_ace;")
-    op.execute("DELETE FROM public.valuation_methods;")
-    op.execute("DELETE FROM public.transport_types;")
-    op.execute("DELETE FROM public.transport_modes;")
-    op.execute("DELETE FROM public.sectors;")
-    op.execute("DELETE FROM public.payment_methods;")
-    op.execute("DELETE FROM public.material_types;")
-    op.execute("DELETE FROM public.invoice_types;")
-    op.execute("DELETE FROM public.incoterms;")
-    op.execute("DELETE FROM public.customs_warehouses;")
-    op.execute("DELETE FROM public.customs_sections;")
-    op.execute("DELETE FROM public.currency_types;")
-    op.execute("DELETE FROM public.countries;")
-    op.execute("DELETE FROM public.containers;")
-    op.execute("DELETE FROM public.code_pedimento_regimens;")
-    op.execute("DELETE FROM public.pedimento_regimens;")
-    op.execute("DELETE FROM public.pedimento_codes;")
+    op.drop_table("valuation_methods", schema="public")
+    op.drop_table("transport_types", schema="public")
+    op.drop_table("transport_modes", schema="public")
+    op.drop_table("sectors", schema="public")
+    op.drop_table("payment_methods", schema="public")
+    op.drop_table("material_types", schema="public")
+    op.drop_table("invoice_types", schema="public")
+    op.drop_table("incoterms", schema="public")
+    op.drop_table("customs_warehouses", schema="public")
+    op.drop_table("customs_sections", schema="public")
+    op.drop_table("currency_types", schema="public")
+    op.drop_table("countries", schema="public")
+    op.drop_table("containers", schema="public")
+    op.drop_table("code_pedimento_regimens", schema="public")
+    op.drop_table("pedimento_regimens", schema="public")
+    op.drop_table("pedimento_codes", schema="public")
+    op.drop_table("user_client_permissions", schema="core")
+    op.drop_table("user_client_roles", schema="core")
+    op.drop_table("role_permissions", schema="core")
+    op.drop_table("client_roles", schema="core")
+    op.drop_table("permissions", schema="core")
+    op.drop_table("units_of_measure", schema="a76")
+    op.drop_table("unit_of_measure_customs", schema="a76")
+    op.drop_table("unit_of_measure_american", schema="a76")
+    op.drop_table("unit_of_measure_oma", schema="a76")
+    op.drop_table("unit_of_measure_ace", schema="a76")
--- a/backend/api/v1/common/base_models.py
+++ b/backend/api/v1/common/base_models.py
@@ -9,10 +9,10 @@ class TimestampMixin:
    """Mixin for common timestamp fields"""

    created_at: Mapped[datetime] = mapped_column(
-        DateTime, nullable=False, default=func.now()
+        DateTime, nullable=False, server_default=func.now()
    )
    updated_at: Mapped[datetime] = mapped_column(
-        DateTime, nullable=False, default=func.now(), onupdate=func.now()
+        DateTime, nullable=False, server_default=func.now(), onupdate=func.now()
    )
    deleted_at: Mapped[datetime | None] = mapped_column(DateTime, nullable=True)

--- a/backend/api/v1/modules/a24/fa/fa_classes/models.py
+++ b/backend/api/v1/modules/a24/fa/fa_classes/models.py
@@ -18,18 +18,32 @@ class QClasses(Base, TenantScopedMixin, TimestampMixin):
    __tablename__ = "fa_classes"  # QClases
    __table_args__ = (
        PrimaryKeyConstraint("id", name="qclases_pk"),
-        ForeignKeyConstraint(["class_id"], ["a76.classes.id"], name="fk_qclasses_classes"),
+        ForeignKeyConstraint(
+            ["class_id"], ["a76.classes.id"], name="fk_qclasses_classes"
+        ),
        {"schema": "a24"},
    )

    id: Mapped[int] = mapped_column(Integer, primary_key=True)
    class_id: Mapped[int] = mapped_column(Integer, nullable=False)

-    import_tariff_code: Mapped[Optional[str]] = mapped_column(String(10), nullable=True)  # FRACCIONIMPO
-    import_tariff_type: Mapped[Optional[str]] = mapped_column(String(6), nullable=True)  # TIPOFRACIMPO
-    export_tariff_code: Mapped[Optional[str]] = mapped_column(String(10), nullable=True)  # FRACCIONEXPO
-    export_tariff_type: Mapped[Optional[str]] = mapped_column(String(6), nullable=True)  # TIPOFRACEXPO
-    depreciation_rate: Mapped[Optional[Decimal]] = mapped_column(Numeric(5, 2), nullable=True)  # TASADEPRECIA
+    import_tariff_code: Mapped[Optional[str]] = mapped_column(
+        String(10), nullable=True
+    )  # FRACCIONIMPO
+    import_tariff_type: Mapped[Optional[str]] = mapped_column(
+        String(6), nullable=True
+    )  # TIPOFRACIMPO
+    export_tariff_code: Mapped[Optional[str]] = mapped_column(
+        String(10), nullable=True
+    )  # FRACCIONEXPO
+    export_tariff_type: Mapped[Optional[str]] = mapped_column(
+        String(6), nullable=True
+    )  # TIPOFRACEXPO
+    depreciation_rate: Mapped[Optional[Decimal]] = mapped_column(
+        Numeric(5, 2), nullable=True
+    )  # TASADEPRECIA
    fda_code: Mapped[Optional[str]] = mapped_column(String(20), nullable=True)  # FDA
    eccn_code: Mapped[Optional[str]] = mapped_column(String(20), nullable=True)  # ECCN
-    class_enabled: Mapped[bool] = mapped_column(Boolean, default=True, nullable=False)  # HABILITADESHABILITACLASE
+    class_enabled: Mapped[bool] = mapped_column(
+        Boolean, default=True, server_default="true", nullable=False
+    )  # HABILITADESHABILITACLASE
--- a/backend/api/v1/modules/a76/doc_types_dig/models.py
+++ b/backend/api/v1/modules/a76/doc_types_dig/models.py
@@ -1,6 +1,13 @@
 from api.v1.common.base_models import TenantScopedMixin, TimestampMixin
 from core.database import Base
-from sqlalchemy import Boolean, Integer, PrimaryKeyConstraint, String, Text, UniqueConstraint
+from sqlalchemy import (
+    Boolean,
+    Integer,
+    PrimaryKeyConstraint,
+    String,
+    Text,
+    UniqueConstraint,
+)
 from sqlalchemy.orm import Mapped, mapped_column


@@ -22,4 +29,4 @@ class DocumentTypeDigitization(Base, TenantScopedMixin, TimestampMixin):
    id: Mapped[int] = mapped_column(Integer)
    code: Mapped[str] = mapped_column(String(10), nullable=False, index=True)
    description: Mapped[str] = mapped_column(Text, nullable=False)
-    active: Mapped[bool] = mapped_column(Boolean, default=True)
+    active: Mapped[bool] = mapped_column(Boolean, default=True, server_default="true")
--- a/backend/api/v1/modules/a76/general_catalogs/ports/dto.py
+++ b/backend/api/v1/modules/a76/general_catalogs/ports/dto.py
@@ -11,7 +11,7 @@ class PortBase(BaseModel):
    location_description: Optional[str] = Field(
        None, max_length=20, description="Location Description")
    port_type: PortType = Field(
-        default=PortType.ENTRY, description="Port Type (ENTRY, EXIT, BOTH)")
+        server_default=PortType.ENTRY, description="Port Type (ENTRY, EXIT, BOTH)")


 class PortCreate(PortBase):
--- a/backend/api/v1/modules/a76/general_catalogs/ports/models.py
+++ b/backend/api/v1/modules/a76/general_catalogs/ports/models.py
@@ -32,4 +32,4 @@ class Port(Base, TenantScopedMixin, TimestampMixin):

    # New column requested
    port_type: Mapped[PortType] = mapped_column(
-        String(15), nullable=False, default=PortType.ENTRY)
+        String(15), nullable=False, server_default=PortType.ENTRY)
--- a/backend/api/v1/modules/a76/general_catalogs/units_of_measure/models.py
+++ b/backend/api/v1/modules/a76/general_catalogs/units_of_measure/models.py
@@ -13,8 +13,6 @@ from api.v1.common.base_models import TenantScopedMixin, TimestampMixin
 from core.database import Base

 # 1. GUniMedACE
-
-
 class UnitOfMeasureACE(Base, TimestampMixin):
    __tablename__ = "unit_of_measure_ace"
    __table_args__ = (
@@ -28,8 +26,6 @@ class UnitOfMeasureACE(Base, TimestampMixin):


 # 2. GUMOMA
-
-
 class UnitOfMeasureOMA(Base, TimestampMixin):
    __tablename__ = "unit_of_measure_oma"
    __table_args__ = (
@@ -43,8 +39,6 @@ class UnitOfMeasureOMA(Base, TimestampMixin):


 # 3. GUMAme
-
-
 class UnitOfMeasureAmerican(Base, TimestampMixin):
    __tablename__ = "unit_of_measure_american"
    __table_args__ = (
@@ -58,8 +52,6 @@ class UnitOfMeasureAmerican(Base, TimestampMixin):


 # 4. GUMAduana
-
-
 class UnitOfMeasureCustoms(Base, TimestampMixin):
    __tablename__ = "unit_of_measure_customs"
    __table_args__ = (
@@ -68,52 +60,15 @@ class UnitOfMeasureCustoms(Base, TimestampMixin):
    )

    id: Mapped[int] = mapped_column(Integer, primary_key=True, autoincrement=True)
-    code: Mapped[str] = mapped_column(String(2), nullable=False)  # CLAVE
-    description: Mapped[Optional[str]] = mapped_column(String(20), nullable=True)
-    scaii_unit_code: Mapped[Optional[str]] = mapped_column(
-        String(5), nullable=True
-    )  # UNIDADSCAII
+    code: Mapped[str] = mapped_column(Integer, nullable=False)  # CLAVE
+    description: Mapped[Optional[str]] = mapped_column(String(20), nullable=True)    


 # 5. GUniMedida (Main)
-
-
 class UnitOfMeasure(Base, TenantScopedMixin, TimestampMixin):
    __tablename__ = "units_of_measure"
    __table_args__ = (
-        UniqueConstraint("code", "tenant_id", "company_id", name="uq_uom_code"),
-        ForeignKeyConstraint(
-            ["customs_code"],
-            [
-                "a76.unit_of_measure_customs.code"
-            ],
-            use_alter=True,
-            name="fk_uom_customs",
-        ),
-        ForeignKeyConstraint(
-            ["american_code"],
-            [
-                "a76.unit_of_measure_american.code"
-            ],
-            use_alter=True,
-            name="fk_uom_american",
-        ),
-        ForeignKeyConstraint(
-            ["ace_code"],
-            [
-                "a76.unit_of_measure_ace.code"
-            ],
-            use_alter=True,
-            name="fk_uom_ace",
-        ),
-        ForeignKeyConstraint(
-            ["oma_code"],
-            [
-                "a76.unit_of_measure_oma.code"
-            ],
-            use_alter=True,
-            name="fk_uom_oma",
-        ),
+        UniqueConstraint("code", "tenant_id", "company_id", name="uq_uom_code"),        
        {"schema": "a76", "extend_existing": True},
    )

@@ -122,35 +77,19 @@ class UnitOfMeasure(Base, TenantScopedMixin, TimestampMixin):
    description: Mapped[Optional[str]] = mapped_column(String(100), nullable=True)
    description_en: Mapped[Optional[str]] = mapped_column(String(100), nullable=True)

-    customs_code: Mapped[Optional[str]] = mapped_column(
-        String(2), nullable=True
-    )  # CLAVE_AMEX
-    american_code: Mapped[Optional[str]] = mapped_column(
-        String(3), nullable=True
-    )  # CLAVE_AAMER
-    ace_code: Mapped[Optional[str]] = mapped_column(
-        String(4), nullable=True
-    )  # CLAVEACE
-    oma_code: Mapped[Optional[str]] = mapped_column(
-        String(10), nullable=True
-    )  # CLAVEOMA
+    customs_code: Mapped[Optional[str]] = mapped_column(ForeignKey("a76.unit_of_measure_customs.code"), nullable=True)  # CLAVE_AMEX
+    american_code: Mapped[Optional[str]] = mapped_column(ForeignKey("a76.unit_of_measure_american.code"), nullable=True)  # CLAVE_AAMER
+    ace_code: Mapped[Optional[str]] = mapped_column(ForeignKey("a76.unit_of_measure_ace.code"), nullable=True)  # CLAVEACE
+    oma_code: Mapped[Optional[str]] = mapped_column(ForeignKey("a76.unit_of_measure_oma.code"), nullable=True)  # CLAVEOMA

    # Relationships omitted for simplicity or need explicit primaryjoin
    customs_unit: Mapped[Optional["UnitOfMeasureCustoms"]] = relationship()
-    american_unit: Mapped[Optional["UnitOfMeasureAmerican"]] = relationship(
-        overlaps="customs_unit"
-    )
-    ace_unit: Mapped[Optional["UnitOfMeasureACE"]] = relationship(
-        overlaps="american_unit,customs_unit"
-    )
-    oma_unit: Mapped[Optional["UnitOfMeasureOMA"]] = relationship(
-        overlaps="ace_unit,american_unit,customs_unit"
-    )
+    american_unit: Mapped[Optional["UnitOfMeasureAmerican"]] = relationship(overlaps="customs_unit")
+    ace_unit: Mapped[Optional["UnitOfMeasureACE"]] = relationship(overlaps="american_unit,customs_unit")
+    oma_unit: Mapped[Optional["UnitOfMeasureOMA"]] = relationship(overlaps="ace_unit,american_unit,customs_unit")


 # 6. GUniMed (General/Conversion)
-
-
 class UnitOfMeasureGeneral(Base, TenantScopedMixin, TimestampMixin):
    __tablename__ = "units_of_measure_general"
    __table_args__ = (
@@ -178,14 +117,10 @@ class UnitOfMeasureGeneral(Base, TenantScopedMixin, TimestampMixin):
    )
    mexico_unit: Mapped[Optional[str]] = mapped_column(String(5), nullable=True)
    # UNIDAD_AME (Note: GUniMed has UNIDAD_AME varchar(5), but GUMAme has CLAVE varchar(3). Keeping as string for now)
-    american_unit_code: Mapped[Optional[str]] = mapped_column(String(5), nullable=True)
+    american_unit_code: Mapped[Optional[str]] = mapped_column(ForeignKey("a76.unit_of_measure_american.code"), nullable=True)

-    customs_code: Mapped[Optional[str]] = mapped_column(
-        String(2), nullable=True
-    )  # CLAVE_ADUANA
-    ace_code: Mapped[Optional[str]] = mapped_column(
-        String(4), nullable=True
-    )  # CLAVEACE
+    customs_code: Mapped[Optional[str]] = mapped_column(ForeignKey("a76.unit_of_measure_customs.code"), nullable=True)  # CLAVE_ADUANA
+    ace_code: Mapped[Optional[str]] = mapped_column(ForeignKey("a76.unit_of_measure_ace.code"), nullable=True)  # CLAVEACE

    customs_unit: Mapped[Optional["UnitOfMeasureCustoms"]] = relationship()
    ace_unit: Mapped[Optional["UnitOfMeasureACE"]] = relationship(
--- a/backend/api/v1/modules/a76/general_catalogs/units_of_measure/seed_adua.py
+++ b/backend/api/v1/modules/a76/general_catalogs/units_of_measure/seed_adua.py
@@ -1,24 +1,24 @@
 seed = [
-    ('KGS', 'Kilo'),
-    ('KW', 'Kilowatt'),
-    ('MILLR', 'Millar'),
-    ('JGO', 'Juego'),
-    ('KWH', 'Kilowatt/Hora'),
-    ('TON', 'Tonelada'),
-    ('BARR', 'Barril'),
-    ('GRN', 'Gramo Neto'),
-    ('DEC', 'Decenas'),
-    ('CIEN', 'Cientos'),
-    ('DOCE', 'Decenas (Docenas)'),
-    ('GR', 'Gramo'),
-    ('CAJA', 'Caja'),
-    ('PZA', 'Botella'),
-    ('CARAT', 'Carat'),
-    ('MT', 'Metro Lineal'),
-    ('M2', 'Metro Cuadrado'),
-    ('M3', 'Metro Cubico'),
-    ('PZA', 'Pieza'),
-    ('PZA', 'Cabeza'),
-    ('LT', 'Litro'),
-    ('PAR', 'Par'),
+    ("1", "Kilo"),
+    ("2", "Gramo"),
+    ("3", "Metro Lineal"),
+    ("4", "Metro Cuadrado"),
+    ("5", "Metro Cubico"),
+    ("6", "Pieza"),
+    ("7", "Cabeza"),
+    ("8", "Litro"),
+    ("9", "Par"),
+    ("10", "Kilowatt"),
+    ("11", "Millar"),
+    ("12", "Juego"),
+    ("13", "Kilowatt/Hora"),
+    ("14", "Tonelada"),
+    ("15", "Barril"),
+    ("16", "Gramo Neto"),
+    ("17", "Decenas"),
+    ("18", "Cientos"),
+    ("19", "Decenas"),
+    ("20", "Caja"),
+    ("21", "Botella"),
+    ("22", "Carat"),
 ]
--- a/backend/api/v1/modules/a76/general_catalogs/units_of_measure/seed_med.py
+++ b/backend/api/v1/modules/a76/general_catalogs/units_of_measure/seed_med.py
@@ -1,44 +0,0 @@
-seed = [
-    # (code, desc_es, desc_en, customs, american, ace, oma)
-    ('BARR', 'BARRIL', 'BARIEL', '', 'BBL', 'BLL', ''),
-    ('BD FT', 'PIE TABLA', 'BD FEET', '', 'FT', 'BFT', ''),
-    ('BOLS', 'BOLSA', 'BAG', '', 'PCS', 'BG', ''),
-    ('BTL', 'BOTELLA', 'BOTTLE', '', 'PCS', 'BO', ''),
-    ('BULT', 'BULTO', 'BULK', '', 'PCS', 'VQ', ''),
-    ('CAJA', 'CAJA', 'BOX', '', '', 'BX', ''),
-    ('CARAT', 'CARAT', 'CARAT', '', '', 'HE', ''),
-    ('CBZA', 'CABEZA', 'HEAD', '', 'PCS', 'Z4', ''),
-    ('CIEN', 'CIENTO', 'CIEN', '', '', 'CEN', ''),
-    ('CM', 'CENTIMETRO', 'CM', 'CM', 'CM', 'CMT', ''),
-    ('CM2', 'CENTIMETRO CUADRADO', 'CM2', 'CM2', 'CM2', 'CMK', ''),
-    ('DEC', 'DECENA', '', '', '', 'DC', ''),
-    ('DM', 'DECIMETRO', 'DM', '', '', 'DMT', ''),
-    ('DM2', 'DECIMETRO CUADRADO', 'SQ DM', '', '', 'DMK', ''),
-    ('DOCE', 'DOCENA', 'DOZ', '', 'DOZ', 'DZN', 'DZ'),
-    ('FOZ', 'ONZA LIQUIDA', 'FOZ', 'FOZ', 'FOZ', 'OZA', ''),
-    ('FT', 'PIES', 'FT', 'FT', 'FT', 'LF', ''),
-    ('FT2', 'PIE CUADRADO', 'FT2', '', 'SFT', 'FTK', ''),
-    ('GAL', 'GALON', 'GAL', 'GAL', 'GAL', 'GLL', ''),
-    ('GR', 'GRAMO', 'GRAM', '', '', 'GRM', ''),
-    ('IN', 'PULGADA', 'IN', '', '', 'LI', ''),
-    ('IN2', 'PULGADA CUADRADA', 'IN2', '', '', 'INK', ''),
-    ('JGO', 'JUEGO', 'SET', '', '', 'SET', ''),
-    ('KGS', 'KILOGRAMOS', 'KGS', '', 'KG2', 'KGM', ''),
-    ('LB', 'LIBRAS', 'LB', '', '', 'LBR', ''),
-    ('LT', 'LITRO', 'LT', 'LT', 'L', 'LTR', ''),
-    ('M2', 'METRO CUADRADO', 'M2', 'M2', 'M2', 'MTK', ''),
-    ('M3', 'METRO CUBICO', 'M3', 'M3', 'M3', 'MTQ', ''),
-    ('MI', 'MILLA', 'MILE', '', 'KM', 'SMI', ''),
-    ('MILLR', 'MILLAR', 'MILLR', '', '', 'MIL', ''),
-    ('MT', 'METROS', 'MT', 'MT', 'M', 'MTR', ''),
-    ('OZ', 'ONZA', 'OZ', 'FOZ', 'FOZ', 'OZ', ''),
-    ('PAR', 'PAR', 'PAIR', '', '', 'PB', ''),
-    ('PQ', 'PAQUETE', 'PACKAGE', '', 'PCS', 'PK_1', ''),
-    ('PZA', 'PIEZA', 'PCS', 'PCS', 'PCS', 'C62_1', ''),
-    ('QGL', 'CUARTO DE GALON', 'QGL', '', '', 'QT', ''),
-    ('ROLL', 'ROLLO', 'ROLL', '', '', 'RO', ''),
-    ('TON', 'TONELADA', 'TON', 'TON', 'TON', 'TNE_1', ''),
-    ('TOZ', 'ONZA TROY', 'TOZ', '', 'TOZ', 'APZ', ''),
-    ('YD', 'YARDA', 'YD', 'YD', 'YD', 'YRD', ''),
-    ('YD2', 'YARDA CUADRADA', 'YD2', '', 'SYD', 'YDK', ''),
-]
--- a/backend/api/v1/modules/a76/invoices/models.py
+++ b/backend/api/v1/modules/a76/invoices/models.py
@@ -10,6 +10,7 @@ from sqlalchemy import (
    String,
    Text,
    TIMESTAMP,
+    func,
 )
 from sqlalchemy.orm import Mapped, mapped_column, relationship
 from core.database import Base
@@ -101,7 +102,7 @@ class InvoiceHeader(Base, TenantScopedMixin, TimestampMixin):
    # Dates
    invoice_date: Mapped[datetime] = mapped_column(Date)  # FECHAFACTURA
    capture_date: Mapped[datetime] = mapped_column(
-        TIMESTAMP(timezone=False), default=datetime.now
+        TIMESTAMP(timezone=False), server_default=func.now()
    )  # FECHACAPTURA + HORAACTUAL
    emission_date: Mapped[Optional[datetime]] = mapped_column(Date)  # FECHAEMISION

@@ -153,13 +154,13 @@ class InvoiceHeader(Base, TenantScopedMixin, TimestampMixin):

    # Generation flags
    generate_id: Mapped[Optional[bool]] = mapped_column(
-        Boolean, default=False
+        Boolean, default=False, server_default="false"
    )  # GENERAID
    generate_desc_parties: Mapped[Optional[str]] = mapped_column(
        String(12)
    )  # GENDESCPARTIDAS / Generar descripción de partidas
    apply_manual_discount: Mapped[Optional[bool]] = mapped_column(
-        Boolean, default=False
+        Boolean, default=False, server_default="false"
    )  # APLICADESCMANUAL

    # Bulk & Downloads
@@ -287,7 +288,7 @@ class InvoiceComplianceMx(Base, TenantScopedMixin, TimestampMixin):
        Integer
    )  # APENDICE17 / Apéndice 17
    is_regime_change: Mapped[Optional[bool]] = mapped_column(
-        Boolean, default=False
+        Boolean, default=False, server_default="false"
    )  # ESCAMBIOREGIMEN / Es cambio de régimen
    which_exchange_rate: Mapped[Optional[str]] = mapped_column(
        String(5)
@@ -299,15 +300,15 @@ class InvoiceComplianceMx(Base, TenantScopedMixin, TimestampMixin):
        String(5)
    )  # ACTVALOR / Actualizar valor
    is_pedimento_pending: Mapped[Optional[bool]] = mapped_column(
-        Boolean, default=False
+        Boolean, default=False, server_default="false"
    )  # PED_PENDIENTE_ASIGNAR (Mapear 1 -> True, 0 -> False)

    # Ownership & Balances
    is_owner_of_goods: Mapped[Optional[bool]] = mapped_column(
-        Boolean, default=False
+        Boolean, default=False, server_default="false"
    )  # ESDUENOMCIA / Es dueño de mercancía
    generate_balances: Mapped[Optional[bool]] = mapped_column(
-        Boolean, default=False
+        Boolean, default=False, server_default="false"
    )  # GENERARSALDOS / Generar saldos
    was_reviewed_by_company: Mapped[Optional[bool]] = mapped_column(
        Boolean
@@ -413,102 +414,102 @@ class InvoiceFinancials(Base, TenantScopedMixin, TimestampMixin):

    # Merchandise Values (MN = National Currency, ME = Foreign Currency, MC = Third Currency)
    value_mn: Mapped[Optional[float]] = mapped_column(
-        Numeric(23, 8), default=0
+        Numeric(23, 8), default=0, server_default="0"
    )  # VALORIMPOMN/VALOREXPOMN/VALORENTMN/VALORSALMN
    value_me: Mapped[Optional[float]] = mapped_column(
-        Numeric(23, 8), default=0
+        Numeric(23, 8), default=0, server_default="0"
    )  # VALORIMPOME/VALOREXPOME/VALORENTME/VALORSALME
    value_mc: Mapped[Optional[float]] = mapped_column(
-        Numeric(23, 8), default=0
+        Numeric(23, 8), default=0, server_default="0"
    )  # VALORIMPOMC/VALOREXPOMC

    # Customs Value
    customs_value_mn: Mapped[Optional[float]] = mapped_column(
-        Numeric(23, 8), default=0
+        Numeric(23, 8), default=0, server_default="0"
    )  # VALORADUANASMN / Valor en aduanas MN
    customs_value_me: Mapped[Optional[float]] = mapped_column(
-        Numeric(23, 8), default=0
+        Numeric(23, 8), default=0, server_default="0"
    )  # VALORADUANASME / Valor en aduanas ME

    # Raw Materials
    raw_material_value_mn: Mapped[Optional[float]] = mapped_column(
-        Numeric(23, 8), default=0
+        Numeric(23, 8), default=0, server_default="0"
    )  # VALORMPMN / Valor materia prima MN
    raw_material_value_me: Mapped[Optional[float]] = mapped_column(
-        Numeric(23, 8), default=0
+        Numeric(23, 8), default=0, server_default="0"
    )  # VALORMPME / Valor materia prima ME

    # Aggregate Value
    aggregate_value_mn: Mapped[Optional[float]] = mapped_column(
-        Numeric(23, 8), default=0
+        Numeric(23, 8), default=0, server_default="0"
    )  # VALORAGREMN / Valor agregado MN
    aggregate_value_me: Mapped[Optional[float]] = mapped_column(
-        Numeric(23, 8), default=0
+        Numeric(23, 8), default=0, server_default="0"
    )  # VALORAGREME / Valor agregado ME
    aggregate_value_mc: Mapped[Optional[float]] = mapped_column(
-        Numeric(23, 8), default=0
+        Numeric(23, 8), default=0, server_default="0"
    )  # VALORAGREMC / Valor agregado MC

    # Mexican Merchandise Value
    mexican_value_mn: Mapped[Optional[float]] = mapped_column(
-        Numeric(23, 8), default=0
+        Numeric(23, 8), default=0, server_default="0"
    )  # VALORVMEXMN / Valor mercancía mexicana MN
    mexican_value_me: Mapped[Optional[float]] = mapped_column(
-        Numeric(23, 8), default=0
+        Numeric(23, 8), default=0, server_default="0"
    )  # VALORVMEXME / Valor mercancía mexicana ME
    mexican_value_mc: Mapped[Optional[float]] = mapped_column(
-        Numeric(23, 8), default=0
+        Numeric(23, 8), default=0, server_default="0"
    )  # VALORVMEXMC / Valor mercancía mexicana MC

    # National Packaging
    national_packaging_mn: Mapped[Optional[float]] = mapped_column(
-        Numeric(23, 8), default=0
+        Numeric(23, 8), default=0, server_default="0"
    )  # VALEMPAQUENACMN / Valor empaque nacional MN
    national_packaging_me: Mapped[Optional[float]] = mapped_column(
-        Numeric(23, 8), default=0
+        Numeric(23, 8), default=0, server_default="0"
    )  # VALEMPAQUENACME / Valor empaque nacional ME
    national_packaging_mc: Mapped[Optional[float]] = mapped_column(
-        Numeric(23, 8), default=0
+        Numeric(23, 8), default=0, server_default="0"
    )  # VALEMPAQUENACMC / Valor empaque nacional MC

    # Costs & Increments
    freight: Mapped[Optional[float]] = mapped_column(
-        Numeric(19, 8), default=0
+        Numeric(19, 8), default=0, server_default="0"
    )  # FLETE / Flete
    insurance: Mapped[Optional[float]] = mapped_column(
-        Numeric(19, 8), default=0
+        Numeric(19, 8), default=0, server_default="0"
    )  # SEGUROS / Seguros
    insurance_value: Mapped[Optional[float]] = mapped_column(
-        Numeric(19, 8), default=0
+        Numeric(19, 8), default=0, server_default="0"
    )  # VALSEGUROS / Valor seguros
    packaging: Mapped[Optional[float]] = mapped_column(
-        Numeric(19, 8), default=0
+        Numeric(19, 8), default=0, server_default="0"
    )  # EMBALAJES / Embalajes
    other_increments: Mapped[Optional[float]] = mapped_column(
-        Numeric(19, 8), default=0
+        Numeric(19, 8), default=0, server_default="0"
    )  # OTROSINCREMENTA / Otros incrementables
    total_increments_mn: Mapped[Optional[float]] = mapped_column(
-        Numeric(23, 8), default=0
+        Numeric(23, 8), default=0, server_default="0"
    )  # TOTALINCREMMN / Total incrementables MN
    total_increments_me: Mapped[Optional[float]] = mapped_column(
-        Numeric(23, 8), default=0
+        Numeric(23, 8), default=0, server_default="0"
    )  # TOTALINCREMME / Total incrementables ME

    # Taxes
    iva_mn: Mapped[Optional[float]] = mapped_column(
-        Numeric(23, 8), default=0
+        Numeric(23, 8), default=0, server_default="0"
    )  # IVAEXPOMN/VALORIVAMN / IVA en MN
    iva_me: Mapped[Optional[float]] = mapped_column(
-        Numeric(23, 8), default=0
+        Numeric(23, 8), default=0, server_default="0"
    )  # IVAEXPOME/VALORIVAME / IVA en ME
    iva_mc: Mapped[Optional[float]] = mapped_column(
-        Numeric(23, 8), default=0
+        Numeric(23, 8), default=0, server_default="0"
    )  # IVAEXPOMC / IVA en MC
    iva_factor: Mapped[Optional[str]] = mapped_column(
        String(10)
    )  # FACTORIVA / Factor IVA (puede ser varchar en imports)
    tax_value_me: Mapped[Optional[float]] = mapped_column(
-        Numeric(23, 8), default=0
+        Numeric(23, 8), default=0, server_default="0"
    )  # VALORIMPUESTOME / Valor impuesto ME
    seal_value_2500: Mapped[Optional[bool]] = mapped_column(
        Boolean
@@ -554,7 +555,7 @@ class InvoiceLogistics(Base, TenantScopedMixin, TimestampMixin):
        String(10)
    )  # TRANSPORTISTAAME / Transportista americano
    transport_type: Mapped[TransportType] = mapped_column(
-        String(15), default="none"
+        String(15), server_default="none"
    )  # TRANSPORTE / Tipo de transporte
    transport_num: Mapped[Optional[str]] = mapped_column(
        String(20)
@@ -566,7 +567,7 @@ class InvoiceLogistics(Base, TenantScopedMixin, TimestampMixin):
        String(80)
    )  # CONDUCTOR / Nombre del conductor
    is_rail: Mapped[Optional[bool]] = mapped_column(
-        Boolean, default=False
+        Boolean, default=False, server_default="false"
    )  # ESFERROCARRIL / Es ferrocarril
    rail_id: Mapped[Optional[str]] = mapped_column(
        String(31)
@@ -655,7 +656,7 @@ class InvoiceLogistics(Base, TenantScopedMixin, TimestampMixin):

    # Delivery Control
    delivered_status: Mapped[Optional[bool]] = mapped_column(
-        Boolean, default=False
+        Boolean, default=False, server_default="false"
    )  # ENTREGADO / Estado de entrega
    received_by: Mapped[Optional[str]] = mapped_column(
        String(50)
@@ -671,7 +672,7 @@ class InvoiceLogistics(Base, TenantScopedMixin, TimestampMixin):

    # CTM Process
    is_ctm_process: Mapped[Optional[bool]] = mapped_column(
-        Boolean, default=False
+        Boolean, default=False, server_default="false"
    )  # SETRATAPROCESOCTM / Se trata de proceso CTM

    # Relationship
--- a/backend/api/v1/modules/a76/parts/models.py
+++ b/backend/api/v1/modules/a76/parts/models.py
@@ -89,7 +89,9 @@ class Part(Base, TenantScopedMixin, TimestampMixin):
    export_code: Mapped[Optional[str]] = mapped_column(String(2))
    exclusion_symbol: Mapped[Optional[str]] = mapped_column(String(19))

-    is_active: Mapped[Optional[bool]] = mapped_column(Boolean, default=True)
+    is_active: Mapped[Optional[bool]] = mapped_column(
+        Boolean, default=True, server_default="true"
+    )
    part_photo: Mapped[Optional[str]] = mapped_column(String(255))

    creation_date: Mapped[Optional[int]] = mapped_column()
--- a/backend/api/v1/modules/a76/transportation/trailers/models.py
+++ b/backend/api/v1/modules/a76/transportation/trailers/models.py
@@ -12,7 +12,7 @@ class Trailer(Base, TenantScopedMixin, TimestampMixin):
    trailer_number = Column(String(20), primary_key=True, nullable=False)
    ace_trailer_number = Column(String(10), nullable=True)
    trailer_type_key = Column(
-        String(2), ForeignKey("a76.trailer_type.trailer_type_key"), nullable=True
+        String(2), ForeignKey("public.trailer_type.trailer_type_key"), nullable=True
    )
    seal = Column(String(15), nullable=True)
    entity_code = Column(String(1), nullable=True)
--- a/backend/api/v1/modules/core/licenses/models.py
+++ b/backend/api/v1/modules/core/licenses/models.py
@@ -44,21 +44,29 @@ class License(Base, TimestampMixin):
    )

    # Plan y características
-    plan = Column(SQLEnum(LicensePlan), default=LicensePlan.FREE, nullable=False)
+    plan = Column(
+        SQLEnum(LicensePlan),
+        default=LicensePlan.FREE,
+        server_default="FREE",
+        nullable=False,
+    )
    status = Column(
-        SQLEnum(LicenseStatus), default=LicenseStatus.PENDING, nullable=False
+        SQLEnum(LicenseStatus),
+        default=LicenseStatus.PENDING,
+        server_default="PENDING",
+        nullable=False,
    )

    # Límites del plan
-    max_users = Column(Integer, default=5, nullable=False)
-    max_storage_gb = Column(Integer, default=10, nullable=False)
-    max_monthly_operations = Column(Integer, default=1000, nullable=False)
+    max_users = Column(Integer, server_default="5", nullable=False)
+    max_storage_gb = Column(Integer, server_default="10", nullable=False)
+    max_monthly_operations = Column(Integer, server_default="1000", nullable=False)

    # Features habilitadas (booleans)
-    feature_api_access = Column(Boolean, default=True)
-    feature_advanced_reports = Column(Boolean, default=False)
-    feature_integrations = Column(Boolean, default=False)
-    feature_dedicated_support = Column(Boolean, default=False)
+    feature_api_access = Column(Boolean, default=True, server_default="true")
+    feature_advanced_reports = Column(Boolean, default=False, server_default="false")
+    feature_integrations = Column(Boolean, default=False, server_default="false")
+    feature_dedicated_support = Column(Boolean, default=False, server_default="false")

    # Vigencia
    starts_at = Column(DateTime(timezone=True), nullable=False)
@@ -85,10 +93,10 @@ class LicenseUsage(Base, TimestampMixin):
    period_start = Column(DateTime(timezone=True), nullable=False)
    period_end = Column(DateTime(timezone=True), nullable=False)

-    active_users = Column(Integer, default=0)
-    storage_used_gb = Column(Integer, default=0)
-    operations_count = Column(Integer, default=0)
-    api_calls_count = Column(Integer, default=0)
+    active_users = Column(Integer, default=0, server_default="0")
+    storage_used_gb = Column(Integer, default=0, server_default="0")
+    operations_count = Column(Integer, default=0, server_default="0")
+    api_calls_count = Column(Integer, default=0, server_default="0")

    def __repr__(self):
        return f"<LicenseUsage(tenant_id={self.tenant_id}, operations={self.operations_count})>"
--- a/backend/api/v1/modules/core/router.py
+++ b/backend/api/v1/modules/core/router.py
@@ -1,5 +1,6 @@
 from .auth.routes import router as auth_router
 from .licenses.routes import router as licenses_router
+from .permissions.routes import router as permissions_router
 from .tenants.routes import router as tenants_router
 from .user_tenant.routes import router as user_tenant_router
 from .users.routes import router as users_router
@@ -13,4 +14,5 @@ router.include_router(tenants_router, prefix="/core", tags=["core / tenants"])
 router.include_router(user_tenant_router, prefix="/core", tags=["core / user-tenants"])
 router.include_router(users_router, prefix="/core", tags=["core / users"])
 router.include_router(licenses_router, prefix="/core", tags=["core / licenses"])
+router.include_router(permissions_router, prefix="/core", tags=["core / permissions"])
 router.include_router(dashboard_router, prefix="/core", tags=["core / dashboard"])
--- a/backend/api/v1/modules/core/tenants/models.py
+++ b/backend/api/v1/modules/core/tenants/models.py
@@ -37,7 +37,12 @@ class Tenant(Base, TimestampMixin):
    slug = Column(String(100), unique=True, nullable=False, index=True)

    # Tipo de tenant (compartido o dedicado)
-    type = Column(SQLEnum(TenantType), default=TenantType.SHARED, nullable=False)
+    type = Column(
+        SQLEnum(TenantType),
+        default=TenantType.SHARED,
+        server_default="SHARED",
+        nullable=False,
+    )

    # Keycloak realm asociado
    keycloak_realm = Column(String(255), nullable=False)
@@ -51,7 +56,7 @@ class Tenant(Base, TimestampMixin):
    contact_phone = Column(String(50))

    # Estado
-    is_active = Column(Boolean, default=True, nullable=False)
+    is_active = Column(Boolean, default=True, server_default="true", nullable=False)

    # Relación con UserTenant
    user_relations: Mapped[List["UserTenant"]] = relationship(
--- a/backend/api/v1/modules/core/user_tenant/models.py
+++ b/backend/api/v1/modules/core/user_tenant/models.py
@@ -45,7 +45,9 @@ class UserTenant(Base, TenantScopedMixin, TimestampMixin):
    )

    # Estado de la relación
-    is_active: Mapped[bool] = mapped_column(Boolean, default=True, nullable=False)
+    is_active: Mapped[bool] = mapped_column(
+        Boolean, default=True, server_default="true", nullable=False
+    )

    # Información adicional - Rol del usuario en este tenant (opcional)
    role: Mapped[Optional[str]] = mapped_column(String(50), nullable=True)
--- a/backend/api/v1/modules/public/reference_data/trailer_types/models.py
+++ b/backend/api/v1/modules/public/reference_data/trailer_types/models.py
@@ -3,10 +3,10 @@ from core.database import Base
 from sqlalchemy import Column, ForeignKeyConstraint, String


-class TrailerType(Base, TenantScopedMixin, TimestampMixin):
+class TrailerType(Base, TimestampMixin):
    __tablename__ = "trailer_type"
    __table_args__ = (
-        {"schema": "a76"},
+        {"schema": "public"},
    )

    trailer_type_key = Column(String(2), primary_key=True, nullable=False)
--- a/backend/main.py
+++ b/backend/main.py
@@ -4,6 +4,7 @@ Backend API con FastAPI + Keycloak + SQLAlchemy
 """

 import logging
+import subprocess

 from api.v1.router import router as api_v1_router
 from core.config import settings
@@ -75,12 +76,19 @@ async def http_exception_handler(request: Request, exc: HTTPException):
    )


+def run_migrations():
+    subprocess.run(
+        ["alembic", "upgrade", "head"],
+        check=True
+    )
+
 # Inicializar la base de datos
@app.on_event("startup")
 async def on_startup():
    """Evento de inicio de la aplicación"""
    logger.info("Iniciando la aplicación Anexo76...")
    init_db()
+    run_migrations()
    logger.info("Base de datos inicializada correctamente.")


--- a/scripts/backend-entrypoint.sh
+++ b/scripts/backend-entrypoint.sh
@@ -41,18 +41,18 @@ wait_for_tcp "${CORE_DB_HOST:-postgres-a76}" "${CORE_DB_PORT:-5432}" "PostgreSQL
 wait_for_tcp "keycloak" "8080" "Keycloak"

 # Ejecutar migraciones de Alembic
-if [ -d "/app/alembic" ]; then
-  echo "Ejecutando migraciones de Alembic..."
-  alembic upgrade head || {
-    echo "⚠ WARNING: Error al ejecutar migraciones"
-    echo "   Verificando estado de la base de datos..."
-    alembic current || echo "   No se pudo determinar la versión actual"
-  }
-  echo "✓ Migraciones completadas"
-else
-  echo "⚠ WARNING: Directorio /app/alembic no encontrado"
-  echo "   Las migraciones de base de datos no se ejecutaron"
-fi
+#if [ -d "/app/alembic" ]; then
+#  echo "Ejecutando migraciones de Alembic..."
+#  alembic upgrade head || {
+#    echo "⚠ WARNING: Error al ejecutar migraciones"
+#    echo "   Verificando estado de la base de datos..."
+#    alembic current || echo "   No se pudo determinar la versión actual"
+#  }
+#  echo "✓ Migraciones completadas"
+#else
+#  echo "⚠ WARNING: Directorio /app/alembic no encontrado"
+#  echo "   Las migraciones de base de datos no se ejecutaron"
+#fi

 echo "=========================================="
 echo "Iniciando aplicación FastAPI..."
--- a/scripts/init_first_time.sh
+++ b/scripts/init_first_time.sh
@@ -530,7 +530,7 @@ if [ $TENANT_QUERY_STATUS -ne 0 ]; then
    echo -e "${RED}✗ Error al consultar el tenant:${NC}"
    echo "$TENANT_ID_RESULT"
    echo -e "${YELLOW}Verificando si la tabla existe...${NC}"
-    docker exec -e PGPASSWORD="${POSTGRES_PASSWORD}" anexo76-postgres-a76 psql -h localhost -p 5432 -U "${POSTGRES_USER}" -d "${POSTGRES_DB}" -c "\dt core.tenants;"
+    exec_pg_sql "\dt core.tenants;"
    exit 1
 fi

@@ -540,7 +540,7 @@ if [ -z "$TENANT_ID" ]; then
    echo -e "${RED}✗ Error: No se pudo obtener el ID del tenant${NC}"
    echo "Resultado de la consulta: '$TENANT_ID_RESULT'"
    echo -e "${YELLOW}Intentando ver todos los tenants...${NC}"
-    docker exec -e PGPASSWORD="${POSTGRES_PASSWORD}" anexo76-postgres-a76 psql -h localhost -p 5432 -U "${POSTGRES_USER}" -d "${POSTGRES_DB}" -c "SELECT id, slug FROM core.tenants LIMIT 10;"
+    exec_pg_sql "SELECT id, slug FROM core.tenants LIMIT 10;"
    exit 1
 fi