D11 - merge origin/Micron-Assets: the Micron asset picker, adapted to R2

Integrates Cody Schaefer's 7ef1fcd (written against pre-R2 main) per Nick's
instruction of Aug 20. The catalog lookup arrives whole: read-only /api/assets
backed by server/assets_db.py (one SELECT, env-only MICRON_DB_URL, 503-not-500
when broken, driver errors logged not propagated), the searchable picker with
CSV import and Excel column paste, catalog rows badged and locked to the DB's
casing, manual rows visibly unvouched, and graceful absent/unreachable states.

Three conflicts, resolved as unions of both sides' intent; the adaptations and
their reasons are recorded in docs/waves/decisions-2026-08-20.md:
- renderPackage: Cody's two-column asset table inside T9.1's sectioned
  add('assets', ...) frame, so the CR-006 toggle keeps governing the export.
- bootData: initAssetPicker() joins the R2 loads instead of replacing them.
- The asset card: his picker UI, plus role=status on the source note (C1).
- Six imported alert() calls converted to the creator's idioms: file errors
  through toast(msg,'alert') as the drawings uploader does; the instructional
  and summary messages through the T7.9 kit, which gains the one-button
  wpAlertDialog shape (BL-024's console conversions will want it too).

New probe: assets_check (27) - read-only structurally, unconfigured/broken as
first-class states, no credential echo, search ranking, casing canonicalisation,
import fallback + dedup, kit-not-native summary. One sections_check pin
re-pointed with the reason in code: normaliseAsset now stamps legacy rows
source:'manual' on load, so the CR-016 check compares content, not bytes.

Battery after merge: assets_check 27/27, creator_dialogs_check 20/20,
sections_check ALL PASS, export_check 20/20, helptip_check 13/13,
mobile_check 24/24, icon_check 5/5, color_check 5/5, form_structure_check
50/51 (the one red is BL-022, unchanged, deliberate).

Item: D11 (new scope, new id per the working rules). Out-of-scope note in
completion.md amended - 'no integration code exists' was true when written.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

docs/reference/completion.md

@@ -67,6 +67,7 @@ name the probe that re-checks the item on every run.
 | D8 | built | T7.7 (5MB / PDF+image / 2GB, 80% warning) |
 | D9 | built | T7.6 (Field View text pill at 390px) |
 | D10 | built | T7.6 / reused T8.3 (stored setting, admin-only, audited, sink-verified) |
+| D11 | built | merge of `origin/Micron-Assets` + integration, Aug 20 (`assets_check`); see `decisions-2026-08-20.md` |
 
 ## Out of scope, confirmed unbuilt
 
@@ -74,8 +75,10 @@ name the probe that re-checks the item on every run.
   `materials_check` grep the model and the diff for stock/inventory/price
   fields on every run; none exist. D6's uploaded list is project-scoped data
   entry, not a catalog.
-- **Asset database integration** — the assets section stays a CR-006 toggle
-  (off on the Micron sample); no integration code exists.
+- **Asset database integration** — SUPERSEDED by D11 on Aug 20: Cody Schaefer's
+  Micron asset picker (read-only catalog lookup, `origin/Micron-Assets`) merged
+  and adapted to the R2 creator. The assets section stays a CR-006 toggle
+  (off on the Micron sample). This line was true when written.
 - **CxAlloy integration** — CR-014 is notification-only, as the task footnote
   ordered; the platforms block stores names and URLs, nothing calls them.
 - **P6 activity import** — CR-001 renders the two fields; nothing imports.