Refresh UI after deployments via service worker update flow

[MaciejTe]

PR type

What kind of change does this PR introduce?

• Bugfix
• Feature
• Code style update
• Refactoring (no functional changes, no api changes)
• Build related changes
• Documentation content changes
• Other... Please describe:

[Copilot]

Pull request overview

This PR updates the app’s service worker (SW) update strategy so long-lived SPA tabs reliably discover new deployments and refresh in a controlled way (avoiding “new SW + old JS chunks” mismatches).

Changes:

• Switches vite-plugin-pwa registration to registerType: 'prompt' and enables Workbox cache cleanup.
• Adds a SW update orchestration module (setupSWUpdate) that periodically checks for SW updates and prompts/apply-updates via a toast + visibility logic.
• Adds unit tests and vitest stubbing for the PWA virtual module; updates nginx caching rules for SW-related un-hashed assets.

Reviewed changes

Copilot reviewed 7 out of 8 changed files in this pull request and generated 2 comments.

Show a summary per file

File	Description
app/vite.config.ts	Changes PWA register type to prompt and enables outdated cache cleanup.
app/src/vite-env.d.ts	Adds vite-plugin-pwa/client type references for TS support.
app/src/main.tsx	Initializes the SW update flow at app startup.
app/src/lib/swUpdate.ts	Implements the SW polling + “refresh” toast update flow.
app/src/tests/vitest.config.ts	Aliases the PWA virtual module to a local stub for unit tests.
app/src/tests/unit/mocks/virtual-pwa-register.ts	Provides the stubbed virtual:pwa-register module for tests.
app/src/tests/unit/lib/swUpdate.test.ts	Adds unit tests covering polling, visibility checks, and refresh prompting behavior.
app/nginx.conf	Ensures SW/manifest-related assets revalidate instead of being long-cached.

Comments suppressed due to low confidence (1)

app/src/tests/vitest.config.ts:15

• include and setupFiles are mis-indented (and the alias map is missing trailing commas), which makes the config harder to read and can trip format/lint checks. Consider normalizing indentation and adding trailing commas consistently within this object.

  test: {
  include: ['src/__tests__/unit/**/*.{test,spec}.{ts,tsx}'],
    exclude: [

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