docs(prd): dated roadmap leaf — Gantt, milestone spine, re-baselining rule

New roadmap.md: mermaid Gantt (validated) putting the six phases on calendar time from baseline 2026-07-11 — P2 e-invoicing opens the plan (ADR D4 target 08-14, two-week fallback before the hard 09-01), P1 flagship in parallel (golden set first, A2 earned ~10-09), ledger- compliance verifications early September (FY-2026 FEC depends on the accounting-module answer), P3 standing fleet through autumn (sentinel 24/7 ~11-13), P4 money-loop exit over December, P5 riding the fiscal calendar (acompte 12-15, CA3 switch 01-01, Q1 filing April, CA12 early May, AG 06-30), P6 e-reporting proven months before 2027-09-01. Immovable-milestone table, dependency notes, re-baselining rule (engineering bars slide, diamonds don't — slips shed scope instead). Wired: hub pointer + leaves row, poc-plan/STATUS backlinks. Co-Authored-By: Claude Fable 5 <[email protected]>
2026-07-11 15:02:02 +02:00
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@@ -153,6 +153,8 @@ flowchart TB

 Phases are streams, not strict gates: **phase 2 starts immediately, in parallel with phase 1** — its 2026-09-01 deadline cannot wait for the flagship. Tasks not named in a phase ride the nearest infrastructure: T05 (and decision D3) lands with phase 4's money loops, T12/T15 with phase 5's fiscal autopilot, T16 grows out of POC-1's GED attach, and T17 starts as soon as phase 1 produces its first journals — its vault-side rails (hermes cron, `sb.py`) already run.

+The dated execution plan — Gantt, the immovable fiscal milestone spine, dependencies, and the re-baselining rule — lives in the [roadmap](roadmap.md).
+
 ## QA strategy

 Golden datasets built from real history (mails, invoices, filed declarations), a per-atom eval harness with field-level scoring and injection fixtures, autonomy promotions earned only through measured gates (and revoked on incident), predicted-delta assertions around every write, €-parity dry-runs for fiscal outputs, and ops QA (heartbeats where silence itself alerts, monthly restore drills, quarterly degraded-mode game-days). Full detail: [qa-strategy.md](qa-strategy.md).
@@ -167,5 +169,6 @@ Golden datasets built from real history (mails, invoices, filed declarations), a
 | [Challenges](challenges.md) | Twelve risks with mitigation strategies and residual ownership. | 🟡 In design |
 | [Compliance](compliance.md) | Bookkeeping obligations → mechanisms; ledger grammar + linter; sandbox-vs-prod posture; Dolibarr verifications. | 🟡 In design |
 | [POC plan](poc-plan.md) | Ordered feasibility proofs with exit criteria and challenge coverage. | 🟡 In design |
+| [Roadmap](roadmap.md) | Dated Gantt, immovable fiscal milestones, dependencies, re-baselining rule. | 🟡 In design |
 | [QA strategy](qa-strategy.md) | Golden sets, eval harness, promotion gates, parity checks, ops QA. | 🟡 In design |
 | [STATUS](STATUS.md) | Foundation ledger (shipped PRs) + phase tracker. | 🟢 Current |