feat: empaquetado .exe con instalador y fix conexion SCAII

- launcher.py reescrito para PyInstaller (Voila in-process, kernel router)
- build_exe.bat: script PyInstaller (onedir + collect-all dependencias Jupyter)
- build_installer.bat + installer.iss: instalador Inno Setup
- schema_registro_sqlite.sql: schema DataStage en SQLite
- _make_conn_str ahora respeta SCAII_TRUSTED (Windows Auth)
- .env.example: quitar variables DB_* (Postgres ya no usado por DataStage)
- requirements.txt: quitar psycopg2-binary

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

app/installer.iss

@@ -0,0 +1,67 @@
+; ============================================================
+; Instalador de Utilerias RECON 2
+; Empaqueta dist\UtileriasReconV2\ en un instalador .exe unico.
+; Requiere Inno Setup 6+: https://jrsoftware.org/isdl.php
+; ============================================================
+
+#define MyAppName "Utilerias RECON 2"
+#define MyAppVersion "1.0.0"
+#define MyAppPublisher "Tecma / CurtManufacturing"
+#define MyAppExeName "UtileriasReconV2.exe"
+
+[Setup]
+AppId={{B3F1A7A8-4D2E-4A6B-9C5A-2C0D1F8E9A11}
+AppName={#MyAppName}
+AppVersion={#MyAppVersion}
+AppPublisher={#MyAppPublisher}
+DefaultDirName={autopf}\UtileriasReconV2
+DefaultGroupName={#MyAppName}
+DisableProgramGroupPage=yes
+OutputDir=installer_output
+OutputBaseFilename=UtileriasReconV2_Setup_{#MyAppVersion}
+Compression=lzma2/ultra64
+SolidCompression=yes
+ArchitecturesAllowed=x64compatible
+ArchitecturesInstallIn64BitMode=x64compatible
+PrivilegesRequired=lowest
+PrivilegesRequiredOverridesAllowed=dialog
+WizardStyle=modern
+UninstallDisplayIcon={app}\{#MyAppExeName}
+
+[Languages]
+Name: "spanish"; MessagesFile: "compiler:Languages\Spanish.isl"
+
+[Tasks]
+Name: "desktopicon"; Description: "Crear acceso directo en el escritorio"; GroupDescription: "Iconos adicionales:"
+
+[Files]
+; Empaqueta TODA la carpeta dist\UtileriasReconV2\ generada por PyInstaller.
+; Excluimos *.map (source maps de JS, solo para debug del browser, no se usan)
+; porque tienen nombres absurdamente largos y rompen la compresion.
+Source: "dist\UtileriasReconV2\*"; DestDir: "{app}"; Excludes: "*.map"; Flags: ignoreversion recursesubdirs createallsubdirs
+; Plantilla .env (el usuario la copia como .env y edita)
+Source: "..\.env.example"; DestDir: "{app}"; Flags: ignoreversion
+
+[Icons]
+Name: "{group}\{#MyAppName}"; Filename: "{app}\{#MyAppExeName}"
+Name: "{group}\Editar configuracion (.env)"; Filename: "notepad.exe"; Parameters: """{app}\.env"""
+Name: "{group}\Desinstalar {#MyAppName}"; Filename: "{uninstallexe}"
+Name: "{autodesktop}\{#MyAppName}"; Filename: "{app}\{#MyAppExeName}"; Tasks: desktopicon
+
+[Run]
+Filename: "{app}\{#MyAppExeName}"; Description: "Ejecutar {#MyAppName} ahora"; Flags: nowait postinstall skipifsilent
+
+[Code]
+// Si no existe .env, copia .env.example como .env tras instalar
+procedure CurStepChanged(CurStep: TSetupStep);
+var
+  EnvFile, EnvExample: string;
+begin
+  if CurStep = ssPostInstall then
+  begin
+    EnvFile := ExpandConstant('{app}\.env');
+    EnvExample := ExpandConstant('{app}\.env.example');
+    if (not FileExists(EnvFile)) and FileExists(EnvExample) then
+      CopyFile(EnvExample, EnvFile, False);
+  end;
+end;