[Zaldaryon]

Summary

When mod updates are detected on startup, GlobalModUpdateChecker displays an actionable notification banner ("The selected Installation has X Mods with updates available") with a "View updates" action. Because actionable notifications have no auto-dismiss timeout, the notice remained on screen indefinitely even after the player navigated to Manage Mods and completed "Update all" or updated the individual mods.

This change:

1. Adds options.onCreated and options.id to NotificationOptions and introduces resolveNotification(id: string, resolvedWith?: string) to NotificationsContext to dismiss banners and mark records resolved in the Activity Center.
2. Introduces an in-memory registry (modUpdateNotices.ts) tracking the active startup mod update notice per installation.
3. Automatically resolves and dismisses the startup notice when:
   • "Update all" completes successfully in useBulkUpdateMods and leaves no remaining updatable mods.
   • Folder refresh in useManageInstalledMods finishes scanning and confirms zero updatable mods remain (covering single mod updates, manual installations, and deletions).

Type

• Bug fix
• Feature
• Performance
• Refactor or cleanup
• Tests only
• Docs or build

Checklist

• Targets dev, not main.
• npm run typecheck passes.
• npm run lint:ci passes.
• npm run format:check passes.
• npm run test:coverage passes, coverage at or above the floor in vitest.config.ts.
• npm run build:unpack passes.

Testing

1. npm run typecheck: passed with zero errors across node, web, and tests.
2. npm run lint:ci: passed with zero errors across oxlint and eslint.
3. npm run format:check: passed with 100% formatted.
4. npm run test:coverage: passed with 305 test files (1927 tests passed, 2 skipped) with coverage floors exceeded:
   • Statements: 95.06% (floor: 94.0%)
   • Branches: 91.27% (floor: 89.0%)
   • Functions: 95.87% (floor: 94.0%)
   • Lines: 97.03% (floor: 96.0%)
5. npm run build:unpack: passed with unpacked Linux binary generated in dist/linux-unpacked.
6. Unit and DOM tests:
   • Added unit tests in tests/renderer/modUpdateNotices.test.ts for recording, retrieving, and resolving startup notice entries.
   • Added unit tests in tests/renderer-dom/activityCenter.test.tsx for options.onCreated, options.id, and resolveNotification.
   • Added regression test in tests/renderer-dom/globalModUpdateChecker.test.tsx verifying startup notice tracking and dismissal upon resolution.

Related issues

Fixes #752