docs: realign blueprint with shipped state + add feature/journey/ideas docs

- PROJECT.md, README.md, TEST_GUIDE.md: status line refreshed; rate-limiter
  doc-vs-code drift fixed; HTML export section rewritten for the SvelteKit-
  static viewer; SSE event names + new events documented; config seed block
  extended with planned toggles + privacy_note; decision log entries added.
- docs/CONCEPT_HTML_VIEWER.md, docs/CONCEPT_MOBILE_UI.md: banner the design
  intent as shipped; point at the source-of-truth code paths.
- docs/CONCEPT_DIASHOW.md: planned-then-shipped design for the live diashow
  (two-queue policy, pluggable transitions, data-mode aware).
- docs/FEATURES.md: capability matrix by role (Guest / Host / Admin) plus
  prose per area (auth, posting, feed, moderation, admin, export, gestures,
  data mode, quotas, privacy note, extensibility).
- docs/USER_JOURNEYS.md: step-by-step flows for every supported scenario,
  including PIN reset by host, data mode, privacy note, gestures, and the
  admin toggles.
- docs/IDEAS.md: speculative extensions (global diashow, reactions,
  multi-tenancy, animation pack, etc.) — explicitly out of v0.16 scope.
- backend/migrations/README.md, frontend/src/lib/README.md: codify the
  "never edit a shipped migration" rule and the lib/ conventions
  (one store per concern, gestures via actions, sheets via ContextSheet,
  transitions as drop-in components).

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

TEST_GUIDE.md

@@ -16,45 +16,47 @@ Please test each step in order and report any errors (console errors, wrong text
 9. ✅ Expected: Overlay disappears
 
 ### Step 3 — Feed & navigation
-10. ✅ Expected: Feed shows "Noch keine Fotos." empty state with an upload button
-11. ✅ Expected: Top-right has an **upload button** (blue) and a **person icon** link
+10. ✅ Expected: Feed shows the empty state ("Noch keine Fotos." or similar) with a hint to upload
+11. ✅ Expected: A **persistent bottom nav** is visible with three slots — 🏠 **Feed** on the left, an elevated 📷+ **FAB** in the center, 👤 **Account** on the right
 
 ### Step 4 — My Account page
-12. Click the **person icon** in the top-right
+12. Tap the **👤 Account** tab in the bottom nav
 13. ✅ Expected: `/account` page shows your name (`Max`), a blue "Gast" badge, session expiry date, and your PIN displayed large in an amber box
-14. Click **Kopieren** — check clipboard contains your PIN
+14. Tap **Kopieren** — check the clipboard contains your PIN
 15. ✅ Expected: Button briefly shows "Kopiert!"
-16. Click **Zur Galerie** to go back to the feed
+16. Tap the 🏠 **Feed** tab to go back
 
 ### Step 5 — Upload
-17. Click **Hochladen** — this takes you to `/upload`
-18. Try uploading a photo from your device library
-19. ✅ Expected: Photo appears in queue with a progress bar, then completes
-20. Go back to `/feed` — ✅ Expected: your photo appears in the feed grid
+17. Tap the central **📷+ FAB** in the bottom nav
+18. ✅ Expected: A bottom sheet slides up offering **Kamera** and **Galerie** options
+19. Tap **Galerie** → pick a photo from your device library
+20. ✅ Expected: Preview screen (`/upload`) shows the staged file with an optional caption / hashtag editor
+21. Tap **Hochladen**
+22. ✅ Expected: You return to the feed immediately; the FAB shows a small badge while uploading; the photo appears in the feed once processing completes
 
 ### Step 6 — Onboarding guide not shown again
-21. Reload the page at `/feed`
-22. ✅ Expected: The onboarding overlay does **not** appear (already dismissed)
+23. Reload the page at `/feed`
+24. ✅ Expected: The onboarding overlay does **not** appear (already dismissed)
 
 ### Step 7 — Recover (open a private/incognito window)
-23. Open a new **private/incognito** window at **http://localhost:5173/recover**
-24. Enter the same name (`Max`) and the PIN you copied
-25. ✅ Expected: You're redirected to the feed with the same account
+25. Open a new **private/incognito** window at **http://localhost:5173/recover**
+26. Enter the same name (`Max`) and the PIN you copied
+27. ✅ Expected: You're redirected to the feed with the same account
 
 ### Step 8 — Upload rate-limit auto-retry
-26. Upload more than 20 photos in one hour to trigger the rate limit
-27. ✅ Expected: When the limit is hit, remaining items stay **Wartend** (not error)
-28. ✅ Expected: An amber banner appears in the queue: "Upload-Limit erreicht. Wird in Xs automatisch fortgesetzt."
-29. ✅ Expected: The countdown ticks down and uploads resume automatically when it reaches 0
+28. Upload more than the per-hour limit of photos in quick succession to trigger the rate limit
+29. ✅ Expected: When the limit is hit, remaining items stay **Wartend** (not error)
+30. ✅ Expected: An amber banner appears in the queue: "Upload-Limit erreicht. Wird in Xs automatisch fortgesetzt."
+31. ✅ Expected: The countdown ticks down and uploads resume automatically when it reaches 0
 
 ### Step 9 — Name uniqueness (case-insensitive)
-30. In a private/incognito window go to **http://localhost:5173/join**
-31. Enter `max` or `MAX` — the same name already taken in Step 1 (different case)
-32. ✅ Expected: Instead of creating a new account, an amber warning appears: „Max ist bereits vergeben." with name tips
-33. ✅ Expected: A PIN input and **Anmelden** button appear, plus an **Anderen Namen wählen** button
-34. Enter your PIN from Step 1 and click **Anmelden**
-35. ✅ Expected: You're signed in to the existing `Max` account and redirected to the feed
-36. Alternatively, click **Anderen Namen wählen** — ✅ Expected: the name input reappears with `max` pre-filled so you can edit it
+32. In a private/incognito window go to **http://localhost:5173/join**
+33. Enter `max` or `MAX` — the same name already taken in Step 1 (different case)
+34. ✅ Expected: Instead of creating a new account, an amber warning appears: „Max ist bereits vergeben." with name tips
+35. ✅ Expected: A PIN input and **Anmelden** button appear, plus an **Anderen Namen wählen** button
+36. Enter your PIN from Step 1 and click **Anmelden**
+37. ✅ Expected: You're signed in to the existing `Max` account and redirected to the feed
+38. Alternatively, click **Anderen Namen wählen** — ✅ Expected: the name input reappears with `max` pre-filled so you can edit it
 
 ---