docs: close out MS16+MS17 mission

Mark acceptance criteria 14-28 as DONE, add MS16+MS17 to Completed Work
section, update resolved risks/open questions, close issue #469, finalize
manifest and scratchpad with smoke test confirmation.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

docs/scratchpads/446-auth-divider-padding.md

@@ -0,0 +1,39 @@
+# Scratchpad: #446 — AuthDivider Padding
+
+## Objective
+
+Add padding above and below the "OR CONTINUE WITH" divider on the login page.
+
+## Component Location
+
+`packages/ui/src/components/AuthSurface.tsx` — `AuthDivider` component
+
+## Current State
+
+- `AuthDivider` has `my-8` (32px margin top/bottom) on the outer div
+- Used in `apps/web/src/app/(auth)/login/page.tsx` line 287
+- Parent container uses `space-y-0`
+
+## Change
+
+Increase `my-8` to `my-10` (40px) to add more visual breathing room around the divider.
+
+ASSUMPTION: `my-10` (40px) is sufficient extra breathing room. If visual review shows otherwise, can adjust.
+
+## Steps
+
+- [x] Issue #446 created
+- [x] Scratchpad created
+- [x] Make change (py-8 instead of my-8)
+- [x] Code review (passed — independent agent review confirmed fix is correct)
+- [x] Commit/push (d7a8ebc → PR #447)
+- [x] CI green (all 3 pipelines: web=success, api=success, orchestrator=success)
+- [x] PR merged (9b5c15c on main)
+- [x] Coolify redeploy (pre-pulled images, service running:healthy)
+- [x] Playwright verify (paddingTop=32px, paddingBottom=32px confirmed)
+- [x] Issue closed (#446)
+
+## Result
+
+COMPLETE. Root cause: `space-y-0` parent overrides `margin-top` on AuthDivider via CSS sibling
+selector. Fix: changed `my-8` to `py-8` so spacing is internal padding, not external margin.

docs/scratchpads/prd-implementation-20260222.md

@@ -124,6 +124,28 @@ User instruction: start planning. Be complete and thorough.
 
 **Resolution needed**: Jason to check Traefik proxy logs on Coolify server (10.1.1.44). May need Traefik proxy restart or cert store cleanup.
 
+## Mission Close-Out — 2026-02-23
+
+**Smoke test**: CONFIRMED by Jason. All pages accessible, auth working, no console errors.
+
+**Deployment blocker resolution**: Traefik HTTPS routing issue resolved (was intermittent proxy state issue).
+
+**Close-out actions (S3)**:
+
+- PRD updated: MS16+MS17 added to Completed Work, acceptance criteria 14-28 marked DONE, risks/open questions marked RESOLVED
+- Issue #469 closed with completion comment
+- Manifest updated with S2+S3 session entries
+- Mission status: **COMPLETE**
+
+**Final evidence**:
+
+- 15/15 tasks done
+- 15 PRs merged (#470-#484)
+- 4 issues closed (#466-#469)
+- CI pipeline #585 green
+- All 5125 tests passing
+- Deployed and smoke-tested at mosaic.woltje.com
+
 ## Corrections
 
 (none)