feat(billing): plan taxonomy reconciliation + Stripe sync + internal-tester allowlist (#164)

Co-authored-by: Michael Chihlas <michael@resolutionflow.com>
Co-committed-by: Michael Chihlas <michael@resolutionflow.com>

.ai/CURRENT_TASK.md

@@ -1,10 +1,12 @@
 # CURRENT_TASK.md
 
-**Active task:** Self-serve signup Phase 2 — PR #162 is open on `feat/self-serve-signup-phase-2`. Current focus is resolving its failing Gitea checks. Phase O manual ops (Stripe live setup, internal validation, flag flip) remain pending after review/merge. See `.ai/HANDOFF.md` for the resume point.
+**Active task:** Phase O cutover for self-serve signup. PR #164 (`feat/billing-plan-taxonomy`) open in Gitea with 5 commits at head `2c9f5e9`, closing the last code blockers — plan taxonomy reconciliation (`team` → `enterprise`, add `starter`), `INTERNAL_TESTER_EMAILS` allowlist, `sync_stripe_plan_ids.py` script, page-title `—` JSX-escape bug fix, frontend taxonomy followups, doc refresh. After merge, only manual ops remain: Stripe Dashboard live-mode config, Railway prod env vars, internal validation pass, public flag flip. See `.ai/HANDOFF.md` for the resume point.
 
 ## Recently shipped
 
-- **2026-05-06 — `feat/self-serve-signup-phase-2`** Phase 2 frontend cutover code (Tasks 27–44 of the plan, 18 commits). Backend remainders + frontend billing foundation + auth surfaces (OAuth + accept-invite + verify-email) + welcome wizard + dashboard redesign (TrialPill, NextStepCard, unified checklist) + public surfaces (`/pricing`, `/contact-sales`) + beta-signup deprecation. Phase O (Stripe live setup, internal validation, flag flip) is operational and pending. Single alembic head `c6cbfc534fad` (no new migrations).
+- **2026-05-08 — PR #164 (open)** Plan taxonomy reconciliation + `INTERNAL_TESTER_EMAILS` allowlist + Stripe sync script + page-title fix + frontend taxonomy followups + doc refresh. 5 commits on `feat/billing-plan-taxonomy` from main (`dad5e1f`); HEAD `2c9f5e9`. Migration `4ce3e594cb87` renames `plan_limits.plan='team'` → `'enterprise'` and adds `starter` row (caps interpolated between free and pro: `max_trees=10`, `sessions=75`, `ai=15/mo`). Resource visibility (`Tree.visibility='team'`, `StepLibrary.visibility='team'`) is a separate domain and intentionally untouched. New `backend/scripts/sync_stripe_plan_ids.py` upserts `plan_billing` rows from Stripe products by exact name match — annual fields stay NULL by design (user explicitly skipping annual pricing for exit flexibility). `Settings.is_internal_tester` + `is_self_serve_active_for` centralize the allowlist + global-flag check; new `get_current_user_optional` dep; `/config/public` honors allowlist for authenticated callers; `/auth/register` allows allowlisted emails without invite code. LandingPage page-title bug — `—` inside JSX attribute strings was rendering as 6 literal characters in browser tabs; replaced with literal em dash. PageMeta default tagline updated from "Decision Tree Platform" to "AI-Powered Troubleshooting for MSPs". 86/86 passing across subscription/billing/plan/invite/admin sweep; tsc + lint clean. See `.ai/DECISIONS.md` for the two architectural entries (taxonomy reconciliation, allowlist).
+- **2026-05-06 — PR #163** Seed test users marked email-verified. Squash-merged into main as `dad5e1f`.
+- **2026-05-06 — PR #162** Self-serve signup Phase 2 (frontend cutover). 18 commits across Tasks 27–44 of the plan. Backend remainders + frontend billing foundation + auth surfaces (OAuth + accept-invite + verify-email) + welcome wizard + dashboard redesign (TrialPill, NextStepCard, unified checklist) + public surfaces (`/pricing`, `/contact-sales`) + beta-signup deprecation. Squash-merged into main as `f1be3ab`. Single alembic head was `c6cbfc534fad` (no new migrations in Phase 2; PR #164 adds `4ce3e594cb87`).
 - **2026-05-02 — PR #159** In-product User Guides rewrite. Merged into `main`. Replaced 15 feature-dump guides with 43 problem-oriented Diátaxis how-tos grouped under 10 categories. Dropped Maintenance Flows / AI Assistant / Flow Assist Sparkles (UI no longer exists). Renamed Step Library → Solutions Library. Authored 14 net-new how-tos for FlowPilot-era surfaces (tasklane keyboard flow, what-we-know, resolve, escalate, record-fix-outcome, post-docs-to-ticket, share-update, pause-and-leave, build-script-from-scratch, open-suggested-flow, pin-a-flow, invite-teammate, etc.). Schema additions: `category`, optional `relatedSlugs`; hub renders category sections; detail page renders related-guides footer. Fixed rendering bug where `**bold**` in `step.tip` rendered literally. Killed misleading "N sections" subtitle on guide cards. Browser-verified against engineer + owner login (sidebar labels, account sub-pages, pilot-screen header buttons, Tasks panel, integration form). Two unverified items intentionally deferred: change-teammate-role (requires non-owner test member to inspect role-change control) and detailed Resolve / Escalate modal contents (Resolve gated by 6 pending tasks in test data). tsc and Vite build clean.
 - **2026-05-01 — PR #158** Session-screen UX impeccable pass + tasklane keyboard flow. Merged into `main` as `5e10005`.
   - **Impeccable pass** (5 sub-passes — distill / quieter / layout / typeset / polish): score 24/40 → 33/40. Removed the duplicate "Suggested checks" chip strip; added an inline `Next steps · N pending in Tasks` cue above the latest action-bearing AI bubble; consolidated the desktop session header to Resolve + Escalate + ⋯ kebab (Context / New Ticket / Update Ticket / Pause now under the kebab, mobile kebab gained Context + New Ticket parity); centered the messages column to `max-w-3xl` to match the composer; bubbles dropped to `rounded-xl`. Decoration sweep: dropped 3px side stripes (TaskLane done states, all 6 ProposalBanner modes, WhatWeKnowItem rows), gradient backgrounds (WhatWeKnow + every banner), accent borderTop on TaskLane header, backdrop-blur on handoff overlay, animate-pulse-amber ring in VerifyingBanner, bordered avatar boxes in banners. Type sweep: 14 distinct sizes → 5-step scale (10/11/12/13/14px). Icon disambiguation: `MessageCircleQuestion` split into `Pencil` (Answer CTA) + `HelpCircle` (per-check explainer). Dead `font-sans` audit (12 sites) and double `text-xs` cleanups.