docs(03-04): complete Dockerfile SSR + legacy cleanup plan

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

.planning/REQUIREMENTS.md

@@ -62,10 +62,10 @@
 
 ### Infrastructure
 
-- [ ] **INFRA-01**: Dockerfile production multi-stage (node:22-alpine build → node:22-alpine runtime, copie `.output/` uniquement)
+- [x] **INFRA-01**: Dockerfile production multi-stage (node:22-alpine build → node:22-alpine runtime, copie `.output/` uniquement)
 - [ ] **INFRA-02**: TypeScript en mode strict avec interfaces pour toutes les données
 - [ ] **INFRA-03**: ESLint + Prettier configurés via @nuxt/eslint
-- [ ] **INFRA-04**: Google Analytics 4 via nuxt-gtag, actif uniquement en production
+- [x] **INFRA-04**: Google Analytics 4 via nuxt-gtag, actif uniquement en production
 
 ## v2 Requirements
 
@@ -134,8 +134,8 @@
 | COMP-02 | Phase 3 | Complete |
 | COMP-03 | Phase 3 | Complete |
 | COMP-04 | Phase 3 | Complete |
-| INFRA-01 | Phase 3 | Pending |
+| INFRA-01 | Phase 3 | Complete |
-| INFRA-04 | Phase 3 | Pending |
+| INFRA-04 | Phase 3 | Complete |
 
 **Coverage:**
 - v1 requirements: 38 total

.planning/ROADMAP.md

@@ -14,7 +14,7 @@ Decimal phases appear between their surrounding integers in numeric order.
 
 - [x] **Phase 1: Foundation** - Nuxt 4 project scaffold, all modules configured, static data migrated, composables ported
 - [ ] **Phase 2: SSR Shell** - i18n FR/EN, dark/light theme, SEO per route, header + footer layout
-- [ ] **Phase 3: Pages & Ship** - All 8 pages, interactive components, EmailJS plugin, GA4, Dockerfile
+- [x] **Phase 3: Pages & Ship** - All 8 pages, interactive components, EmailJS plugin, GA4, Dockerfile (completed 2026-04-08)
 
 ## Phase Details
 
@@ -64,7 +64,7 @@ Plans:
 - [x] 03-01-PLAN.md — Composants partages + deps + ContactForm + nodemailer server route
 - [x] 03-02-PLAN.md — Landing + Projects + Project Detail pages
 - [x] 03-03-PLAN.md — About + Contact + Fiverr + 404 pages
-- [ ] 03-04-PLAN.md — Dockerfile SSR + GA4 config + docker-compose + legacy cleanup
+- [x] 03-04-PLAN.md — Dockerfile SSR + GA4 config + docker-compose + legacy cleanup
 **UI hint**: yes
 
 ## Progress
@@ -76,4 +76,4 @@ Phases execute in numeric order: 1 → 2 → 3
 |-------|----------------|--------|-----------|
 | 1. Foundation | 2/2 | Complete | 2026-04-08 |
 | 2. SSR Shell | 3/3 | Complete | 2026-04-08 |
-| 3. Pages & Ship | 3/4 | In Progress|  |
+| 3. Pages & Ship | 4/4 | Complete   | 2026-04-08 |

.planning/STATE.md

@@ -3,15 +3,15 @@ gsd_state_version: 1.0
 milestone: v1.0
 milestone_name: milestone
 status: executing
-stopped_at: Completed 03-03-PLAN.md
+stopped_at: Completed 03-04-PLAN.md
-last_updated: "2026-04-08T16:39:12.051Z"
+last_updated: "2026-04-08T16:41:35.206Z"
 last_activity: 2026-04-08 -- Phase 3 Plan 02 main pages executed
 progress:
   total_phases: 3
-  completed_phases: 2
+  completed_phases: 3
   total_plans: 9
-  completed_plans: 8
+  completed_plans: 9
-  percent: 89
+  percent: 100
 ---
 
 # Project State
@@ -58,6 +58,7 @@ Progress: [███████░░░] 78%
 | Phase 03-pages-ship P01 | 239 | 3 tasks | 17 files |
 | Phase 03-pages-ship P02 | 103s | 3 tasks | 3 files |
 | Phase 03 P03 | 129s | 3 tasks | 6 files |
+| Phase 03 P04 | 59s | 2 tasks | 169 files |
 
 ## Accumulated Context
 
@@ -76,6 +77,7 @@ Recent decisions affecting current work:
 - [Phase 02]: Renamed a11y.github to a11y.gitea to match actual Gitea hosting
 - [Phase 03-pages-ship]: HTML escaping added to nodemailer email body for XSS prevention
 - [Phase 03]: Fiverr page reuses homeFAQs; UIcon replaces raw SVG paths
+- [Phase 03]: Dockerfile uses node:22-alpine for both stages, no nginx
 
 ### Pending Todos
 
@@ -89,6 +91,6 @@ None yet.
 
 ## Session Continuity
 
-Last session: 2026-04-08T16:39:12.049Z
+Last session: 2026-04-08T16:41:35.203Z
-Stopped at: Completed 03-03-PLAN.md
+Stopped at: Completed 03-04-PLAN.md
 Resume file: None

.planning/phases/03-pages-ship/03-04-SUMMARY.md

@@ -0,0 +1,58 @@
+---
+phase: 03-pages-ship
+plan: 04
+subsystem: infrastructure-cleanup
+tags: [dockerfile, docker, ssr, ga4, legacy-cleanup, traefik]
+dependency_graph:
+  requires: [03-02-PLAN, 03-03-PLAN]
+  provides: [ssr-dockerfile, docker-compose-traefik, clean-repo]
+  affects: []
+tech_stack:
+  added: []
+  patterns: [multi-stage Dockerfile node:22-alpine, .output SSR deploy, Traefik port 3000]
+key_files:
+  created:
+    - .dockerignore
+  modified:
+    - Dockerfile
+    - docker-compose.yml
+decisions:
+  - "Dockerfile uses node:22-alpine for both build and runtime stages (no nginx)"
+  - "SMTP and GA4 env vars injected via docker-compose environment section"
+  - "Formation page not redirected — returns 404 naturally per D-19"
+  - "GA4 nuxt-gtag config already correct from Plan 01 — no changes needed"
+metrics:
+  duration: 59s
+  completed: 2026-04-08
+  tasks: 2
+  files: 169
+---
+
+# Phase 03 Plan 04: Dockerfile SSR + GA4 + Legacy Cleanup Summary
+
+Multi-stage Dockerfile rewritten from nginx/dist to node:22-alpine build+runtime copying .output/ with node server, docker-compose Traefik port updated 80->3000 with SMTP/GA4 env vars, 166 legacy SPA files deleted (src/, old/, nginx.conf, index.html, eslint.config.ts, env.d.ts).
+
+## Task Results
+
+| Task | Name | Commit | Key Files |
+|------|------|--------|-----------|
+| 1 | Dockerfile SSR multi-stage + docker-compose Traefik port 3000 | 39749c6 | Dockerfile, .dockerignore, docker-compose.yml |
+| 2 | GA4 production-only + legacy cleanup | 081ed03 | 166 files deleted (src/, old/, nginx.conf, index.html, eslint.config.ts, env.d.ts) |
+
+## Deviations from Plan
+
+None - plan executed exactly as written.
+
+## Verification
+
+- Dockerfile uses node:22-alpine in 2 stages, copies .output/, CMD node /app/.output/server/index.mjs
+- .dockerignore excludes node_modules, .nuxt, .output, src, .git, .planning
+- docker-compose.yml loadbalancer.server.port=3000
+- docker-compose.yml has NUXT_SMTP_HOST/USER/PASS/TO and NUXT_PUBLIC_GTAG_ID env vars (${VAR} references, no hardcoded secrets)
+- nuxt-gtag enabled only in production (import.meta.env.NODE_ENV === 'production')
+- runtimeConfig.public.gtag.id present for runtime injection
+- No app/pages/formation.vue exists — /formation returns 404
+- src/ directory completely removed
+- old/, nginx.conf, index.html, eslint.config.ts, env.d.ts removed
+
+## Self-Check: PASSED