feat: L'Ami Fiduciaire V1.0.0 — full codebase with Story 0.1 complete

Initial commit of the L'Ami Fiduciaire SaaS platform built on Laravel 12,
Vue 3, Inertia.js 2, and Tailwind CSS 4.

Story 0.1 (rename folders to declarations in database) is implemented and
code-reviewed: migration, rollback, and 6 Pest tests all passing.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

.github/workflows/lint.yml

@@ -0,0 +1,49 @@
+name: linter
+
+on:
+  push:
+    branches:
+      - develop
+      - main
+      - master
+      - workos
+  pull_request:
+    branches:
+      - develop
+      - main
+      - master
+      - workos
+
+permissions:
+  contents: write
+
+jobs:
+  quality:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v6
+
+      - name: Setup PHP
+        uses: shivammathur/setup-php@v2
+        with:
+          php-version: '8.4'
+
+      - name: Install Dependencies
+        run: |
+          composer install -q --no-ansi --no-interaction --no-scripts --no-progress --prefer-dist
+          npm install
+
+      - name: Run Pint
+        run: composer lint
+
+      - name: Format Frontend
+        run: npm run format
+
+      - name: Lint Frontend
+        run: npm run lint
+
+      # - name: Commit Changes
+      #   uses: stefanzweifel/git-auto-commit-action@v7
+      #   with:
+      #     commit_message: fix code style
+      #     commit_options: '--no-verify'