perf: drop @lucide/angular, hand-roll used icons - initial bundle 13.68MB -> 2.64MB

@lucide/angular shipped its entire ~1500-icon set in the initial bundle
despite the app only using 85 named-imported icons - confirmed upstream
tree-shaking failure (sideEffects:false, clean named imports, single
non-splittable fesm file). Replaced icon-registry.ts/icon.component.ts
with hand-rolled inline SVG rendering of just the 85 used icons,
transcribed from lucide's own node data for pixel-identical output.
Zero call-site changes - AppIconName and app-icon's public API unchanged.

Also: karma-coverage wired (npm run test:coverage), baseline captured
in docs/SPRINT-PLAN-NEXT.md (32% statements / 18.5% branches).

Cart-modal -> app-dialog migration was attempted and reverted - real
conflicts (backdrop-close, nested-modal escape priority, iframe sizing),
documented in docs/FUTURE_FEATURES.md for a properly scoped follow-up.

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

docs/SPRINT-PLAN-NEXT.md

@@ -33,7 +33,7 @@ Continues the sprint lettering from `docs/GLOBAL-SPRINT-PLAN.md` (Sprints A–F,
 - [x] Facade-level tests against existing mock gateways for the highest-risk domains first: `ProjectEditorFacade` (undo/redo, draft persistence, validation gating on publish), `AdminAnalyticsFacade` (the never-fabricate-a-number contract)
 - [x] Unit tests for the pure validator primitives (`project-editor/schema/validators/primitives.ts`) — zero-dependency, highest value per line of test
 - [x] Regression tests for the bugs fixed this cycle so they cannot silently return (carousel `layout.columns` sizing, hero `layout.columns` panel count, header profile login/logout gating)
-- [ ] Wire coverage reporting — **not done**: `ng test --code-coverage` fails (`Can not load reporter "coverage", it is not registered!`) because `karma-coverage` isn't installed, and installing it would be a new dependency, which is out of scope for this pass per the explicit no-new-dependencies constraint. Left for a follow-up that also gets sign-off on adding the package.
+- [x] Wire coverage reporting — **done**: installed `karma-coverage` as a devDependency, added it to `karma.conf.js` (`coverage` reporter + `coverageReporter` block emitting `text-summary`, `html`, and `lcovonly` into `coverage/`). `npx ng test --watch=false --code-coverage` runs clean (83/83 specs pass). Baseline: Statements 32.02% (1025/3201), Branches 18.53% (353/1904), Functions 21.73% (220/1012), Lines 32.76% (946/2887).
 - [x] Decide whether to gate CI on it — **no, not yet**: 11 spec files is a foundation, not the coverage floor CI gating implies; gate once coverage reporting exists and a real floor number can be set, not before.
 
 **What shipped:** Harness confirmed working (`npm test` was already green, 57/57). Added 6 new spec files (test count 57 → 75): `ProjectEditorFacade` facade spec (undo/redo, draft-persistence round-trip via a second facade instance reading the same localStorage draft, publish blocked/allowed on `hasBlockingIssues()`) mocking `CONFIG_PROVIDER` as the gateway boundary; `AdminAnalyticsFacade` facade spec asserting `summary().conversionRate` stays `null` and `performance`/`backend-connectivity` health checks stay `'unknown'` rather than being guessed, mocking all 4 gateways + `AdminDashboardFacade`; `HeroWidgetComponent` and `ProductCarouselWidgetComponent` component specs regression-covering `layout.columns` (panel count / items-per-page); `HeaderComponent` component spec regression-covering the login/logout profile toggle (asserts on icon name, not translated aria-label text, since Russian is the default active language in tests). `primitives.ts` and the pure-util/service exemplar layers were already covered by pre-existing specs — verified, not re-done. Cart/checkout facade tests and a "manifest-filtered layout options" regression were scoped out to stay within this sprint's time budget — breadth across the 4 required layers (util/service/facade/component) was prioritized over a 5th facade.