Tasks: split T43 into three

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

TASKS.md

@@ -147,7 +147,9 @@ Per-component lines live in `tasks/`. Tags there:
 - [x] T42e Misc · Terms and notices — `tasks/ch31-43.md`
 - [x] T42f Misc · Web — `tasks/ch31-43.md`
 - [x] T42g Misc · Export and import — `tasks/ch31-43.md`
-- [ ] T43 Library Tooling
+- [ ] T43a Tooling · Workbench — `tasks/ch31-43.md`
+- [ ] T43b Tooling · Inspection — `tasks/ch31-43.md`
+- [ ] T43c Tooling · Catalogs — `tasks/ch31-43.md`
 - [ ] T44 Capture: every component, light and dark, plus motion clips; roots still on `w_full` drop it, checked at 280px and in padded cards
 - [ ] T45 Website: `frontend/`, Vite 8, pnpm, light and dark: a home page in motion (three.js, smooth scroll), and a components page with every component, categories on the left and the chosen one's detail on the right, after astryx.atmeta.com
 - [ ] T46 E2E: Playwright against the built site

tasks/ch31-43.md

@@ -352,14 +352,20 @@
 - [x] ImportDialog — field mapping → `misc::ImportDialog`: a Select of the columns for each field, matched by name to start, over a preview of the first rows; Import asks for each required field's column
 - [x] CSVImporter → `misc::CsvImporter`: CSV read as RFC 4180 (`misc::read_csv`), its first row naming the columns unless the box says otherwise, mapped through the ImportDialog into records; text that does not read says why
 
-## T43 Library Tooling — `src/tooling`
+## T43a Tooling · Workbench — `src/tooling`
 
 - [ ] ComponentGallery / Storybook
 - [ ] PlaygroundPanel
+
+## T43b Tooling · Inspection
+
 - [ ] InspectorOverlay
 - [ ] FPSMeter / PerfOverlay
 - [ ] RenderCounter
 - [ ] EventLogger
+
+## T43c Tooling · Catalogs
+
 - [ ] DesignTokenViewer
 - [ ] IconBrowser
 - [ ] A11yChecker — contrast audit