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>

_bmad/bmm/workflows/bmad-quick-flow/quick-dev/steps/step-03-execute.md

@@ -0,0 +1,111 @@
+---
+name: 'step-03-execute'
+description: 'Execute implementation - iterate through tasks, write code, run tests'
+
+nextStepFile: './step-04-self-check.md'
+---
+
+# Step 3: Execute Implementation
+
+**Goal:** Implement all tasks, write tests, follow patterns, handle errors.
+
+**Critical:** Continue through ALL tasks without stopping for milestones.
+
+---
+
+## AVAILABLE STATE
+
+From previous steps:
+
+- `{baseline_commit}` - Git HEAD at workflow start
+- `{execution_mode}` - "tech-spec" or "direct"
+- `{tech_spec_path}` - Tech-spec file (if Mode A)
+- `{project_context}` - Project patterns (if exists)
+
+From context:
+
+- Mode A: Tasks and AC extracted from tech-spec
+- Mode B: Tasks and AC from step-02 mental plan
+
+---
+
+## EXECUTION LOOP
+
+For each task:
+
+### 1. Load Context
+
+- Read files relevant to this task
+- Review patterns from project-context or observed code
+- Understand dependencies
+
+### 2. Implement
+
+- Write code following existing patterns
+- Handle errors appropriately
+- Follow conventions observed in codebase
+- Add appropriate comments where non-obvious
+
+### 3. Test
+
+- Write tests if appropriate for the change
+- Run existing tests to catch regressions
+- Verify the specific AC for this task
+
+### 4. Mark Complete
+
+- Check off task: `- [x] Task N`
+- Continue to next task immediately
+
+---
+
+## HALT CONDITIONS
+
+**HALT and request guidance if:**
+
+- 3 consecutive failures on same task
+- Tests fail and fix is not obvious
+- Blocking dependency discovered
+- Ambiguity that requires user decision
+
+**Do NOT halt for:**
+
+- Minor issues that can be noted and continued
+- Warnings that don't block functionality
+- Style preferences (follow existing patterns)
+
+---
+
+## CONTINUOUS EXECUTION
+
+**Critical:** Do not stop between tasks for approval.
+
+- Execute all tasks in sequence
+- Only halt for blocking issues
+- Tests failing = fix before continuing
+- Track all completed work for self-check
+
+---
+
+## NEXT STEP
+
+When ALL tasks are complete (or halted on blocker), read fully and follow: `{project-root}/_bmad/bmm/workflows/bmad-quick-flow/quick-dev/steps/step-04-self-check.md`.
+
+---
+
+## SUCCESS METRICS
+
+- All tasks attempted
+- Code follows existing patterns
+- Error handling appropriate
+- Tests written where appropriate
+- Tests passing
+- No unnecessary halts
+
+## FAILURE MODES
+
+- Stopping for approval between tasks
+- Ignoring existing patterns
+- Not running tests after changes
+- Giving up after first failure
+- Not following project-context rules (if exists)