[AZ-460] [AZ-462] [AZ-466] [AZ-475] Batch 4 - destructive UX/forms/overlay/save

AZ-466 — Destructive UX policy + ConfirmDialog a11y + no-alert (4pts):
  src/components/ConfirmDialog.test.tsx (8 fast),
  tests/destructive_ux.test.tsx (4 fast, AdminPage class-delete drift),
  e2e/tests/destructive_ux.e2e.ts. New static checks STC-SEC7 (alert
  allowlist) + STC-SEC8 (destructive-surfaces gated/drift) wired through
  scripts/check-banned-deps.mjs reading tests/security/banned-deps.json.

AZ-475 — Numeric form input rejection (2pts):
  tests/form_hygiene.test.tsx (3 fast). Documents two SettingsPage drifts:
  silent zero coercion via parseInt(v)||0 and labels missing htmlFor.

AZ-462 — Overlay membership at in-window edges (2pts):
  tests/overlay_membership.test.tsx (6 fast). Documents getTimeWindowDetections
  strict < drift; AC-1 boundary tests are it.fails(); AC-2 / control PASS.
  Mocks HTMLCanvasElement.getContext to capture strokeRect.

AZ-460 — Annotation save URL + payload contract (2pts):
  tests/annotations_endpoint.test.tsx (6 fast),
  e2e/tests/annotations_endpoint.e2e.ts. AC-1 URL canary PASSes; AC-2
  payload missing 4 fields documented as it.fails(); AC-3 manual-draw
  PASS, AI-suggestion-accept + bulk-edit-save QUARANTINE skip.

Test infrastructure:
  - tests/setup.ts: NoopResizeObserver + NoopEventSource JSDOM polyfills.
  - tests/msw/handlers/annotations.ts: doubly-prefixed paths matching
    production calls (e.g. /api/annotations/annotations).
  - tests/msw/handlers/flights.ts: plural /aircrafts paths.

Verification: bun run test:fast → 80 passed, 13 skipped (14 files).
scripts/run-tests.sh --static-only → 24/24 PASS (was 22; +STC-SEC7/SEC8).
Per-batch self-review verdict: PASS_WITH_WARNINGS. Cumulative review
of batches 04-06 due after batch 6 per implement/SKILL.md Step 14.5.
Report: _docs/03_implementation/batch_04_report.md.

Also includes the previously-untracked
_docs/03_implementation/cumulative_review_batches_01-03_report.md
generated at the start of this session before batch 4 began.

Co-authored-by: Cursor <cursoragent@cursor.com>

tests/setup.ts

@@ -4,6 +4,41 @@ import { cleanup } from '@testing-library/react'
 import { server } from './msw/server'
 import { setToken, setNavigateToLogin } from '../src/api/client'
 
+// JSDOM polyfills for browser APIs production code touches at mount time.
+// These are no-op stubs — tests that exercise the actual behavior install
+// richer fakes per-suite (e.g. `tests/sse_lifecycle.test.tsx` overrides
+// `globalThis.EventSource` and restores it; that pattern still works).
+class NoopResizeObserver {
+  observe(): void {}
+  unobserve(): void {}
+  disconnect(): void {}
+}
+
+class NoopEventSource extends EventTarget {
+  url: string
+  readyState: 0 | 1 | 2 = 0
+  onopen: ((e: Event) => void) | null = null
+  onmessage: ((e: MessageEvent) => void) | null = null
+  onerror: ((e: Event) => void) | null = null
+  constructor(url: string | URL) {
+    super()
+    this.url = String(url)
+  }
+  close(): void {
+    this.readyState = 2
+  }
+  static readonly CONNECTING = 0
+  static readonly OPEN = 1
+  static readonly CLOSED = 2
+}
+
+const g = globalThis as unknown as {
+  ResizeObserver?: typeof NoopResizeObserver
+  EventSource?: typeof NoopEventSource
+}
+if (!g.ResizeObserver) g.ResizeObserver = NoopResizeObserver
+if (!g.EventSource) g.EventSource = NoopEventSource
+
 // MSW boundary configured per AZ-456 AC-3:
 //   - All outbound /api/<service>/... fetches MUST be intercepted.
 //   - A test missing a handler for a network request is a HARD failure