Closes ADR-0023 — all 4 phases now shipped. Final field: api.v2_enabled.
Approach: always-register-with-middleware-gate.
- /api/v2/* routes are now registered UNCONDITIONALLY at startup
- new Server.v2EnabledGate middleware reads the live config on every
request and returns 404 + {"error":"not_found","message":"v2 API is
currently disabled"} when api.v2_enabled is false
- the existing Config.WatchAndApply hot-reload pipeline already keeps
the config struct fresh — no extra plumbing needed
- flag flip takes effect on the NEXT request (not in-flight ones)
- no router rebuild, no restart
Tested via 3 unit tests in pkg/server/v2_gate_test.go:
- blocked-when-disabled: 404 + correct error message + JSON content-type
- passes-when-enabled: NOT 404, gate message ABSENT (handler executed)
- hot-reload-mid-life: same Server, same router, config flipped between
two requests → 404 then 200, proves the gate reads live config
Race detector clean. Full BDD suite green. ADR-0023 status promoted to
"Implemented" (no more parenthetical phase tracking).
The original "deferred" rationale in ADR-0023 listed router refactor as
the cost. Turns out the cost was minimal: ~25 lines of middleware + 3
tests + an `if` block deletion.
## Summary
Homogenize all 23 ADRs to a single canonical header format, and rewrite `adr/README.md` to match the actual state of the corpus.
This is **Tâche 7** of the ARCODANGE Phase 1 migration (Claude Code → Mistral Vibe). Independent from PR #17 (Tâche 6 — restructure AGENTS.md) — both can merge in any order. No code changes; only documentation.
## Changes
### 1. Homogenize 21 ADR headers (commit `db09d0a`)
The audit (Tâche 6 Phase A, Mistral intent-router agent, 2026-05-02) had identified **3 inconsistent header formats** :
- **F1** — list bullets (`* Status:` / `* Date:` / `* Deciders:`) : 11 ADRs (0001-0008, 0011, 0014, 0023)
- **F2** — bold fields (`**Status:**` / `**Date:**` / `**Authors:**`) : 9 ADRs (0009, 0010, 0012, 0013, 0015, 0016, 0017, 0018, 0019)
- **F3** — dedicated section (`## Status\n**Value** ✅`) : 5 ADRs (0020, 0021, 0022, 0024, 0025)
Plus mixed metadata names (Authors / Deciders / Decision Date / Implementation Date / Implementation Status / Last Updated) and decorative emojis on status values made the corpus hard to scan or template against.
**Canonical format adopted** (see `adr/README.md` for full template) :
```markdown
# NN. Title
**Status:** <Proposed | Accepted | Implemented | Partially Implemented | Approved | Rejected | Deferred | Deprecated | Superseded by ADR-NNNN>
**Date:** YYYY-MM-DD
**Authors:** Name(s)
[optional **Field:** ... lines]
## Context...
```
**Transformations applied** (via `/tmp/homogenize-adrs.py` script, 23 files scanned, 21 modified — 0010 and 0012 were already conform) :
- F1 list bullets → bold fields
- F2 cleanup : `**Deciders:**` → `**Authors:**`, strip status emojis
- F3 sections : `## Status\n**Value** ✅` → `**Status:** Value` (single line)
- Strip decorative emojis from `**Status:**` and `**Implementation Status:**`
- Convert `* Last Updated:` / `* Implementation Status:` / `* Decision Drivers:` / `* Decision Date:` to bold
- Date typo fix : `2024-04-XX` → `2026-04-XX` for ADRs 0018, 0019 (off-by-2-years in original)
- Normalize multiple blank lines after header (max 1)
**ADR body content is preserved unchanged.** Only headers transformed.
### 2. Rewrite `adr/README.md` (commit `d64ab02`)
Previous README had multiple inconsistencies :
- Index table listed wrong titles for ADRs 0010-0021 (looked like an aspirational forecast that never matched reality — e.g. "0011 = Trunk-Based Development" but real 0011 is absent and Trunk-Based Development is actually 0017)
- Listed entries for ADRs 0011 (validation library) and 0014 (gRPC) but **these files do not exist** in the repo
- 0024 (BDD Test Organization) was missing from the detail list
- Template still showed the obsolete F1 format (`* Status:`)
- Decorative emojis on every status entry
Rewrite :
- Index table **regenerated from actual file contents** (title from H1, status from `**Status:**` line) — emoji-free, accurate
- Notes that 0011 / 0014 are not currently in use (reserved)
- Updated template block matches the canonical format
- Status Legend extended with `Approved`, `Partially Implemented`, `Deferred`
- Added note that 0026 is the next free number for new ADRs
## Test plan
- [x] All 23 ADRs follow `**Status:**` / `**Date:**` / `**Authors:**` (verified via grep)
- [x] No more occurrences of `* Status:` (F1) or `## Status` (F3) in any ADR header
- [x] No more emojis on `**Status:**` lines
- [x] `adr/README.md` index links resolve to existing files (no more 0011 / 0014 dead links)
- [x] Pre-commit hooks pass (`go mod tidy`, `go fmt`, `swag fmt`)
## Migration context
Part of Phase 1 of the ARCODANGE migration from Claude Code to Mistral Vibe. Tâche 7 of the curriculum.
Independent from PR #17 (which restructures `AGENTS.md`). The two PRs touch disjoint files — no merge conflict expected when both are merged.
🤖 Generated with [Claude Code](https://claude.com/claude-code) (Opus 4.7, 1M context). Mistral Vibe (intent-router agent / mistral-medium-3.5) did the original audit identifying the 3 formats during Tâche 6 Phase A.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Co-Authored-By: Mistral Vibe (devstral-2 / mistral-medium-3.5)
Reviewed-on: #18
Co-authored-by: Gabriel Radureau <arcodange@gmail.com>
Co-committed-by: Gabriel Radureau <arcodange@gmail.com>
