Fix Zustand migration: type accuracy, perf optimization, and test completeness

[Copilot]

Addresses four issues identified in review of the React Context → Zustand migration.

Changes

• handleSearch type: Changed return type from () => void to () => Promise<void> in FormStoreActions to match useGitHubDataFetching implementation; updated default stub to () => Promise.resolve()
• Stale doc comment: Replaced reference to non-existent useFormStoreSync with accurate description of the useEffect-based sync in App.tsx
• Unnecessary setState calls: The sync useEffect in App.tsx now diffs next state against current Zustand state and only calls setState with changed keys, avoiding spurious subscriber notifications on every render

const changedState = (Object.keys(nextState) as (keyof typeof nextState)[]).reduce(
  (acc, key) => {
    if (currentState[key] !== nextState[key]) acc[key] = nextState[key] as never;
    return acc;
  },
  {} as Partial<typeof nextState>
);
if (Object.keys(changedState).length > 0) {
  useFormStore.setState(changedState);
}

• Incomplete mock in Summary.test.tsx: Added missing searchText, setSearchText, and addAvatarsToCache fields to align the mock with the full FormStore interface consumed by the component

---

💬 We'd love your input! Share your thoughts on Copilot coding agent in our 2 minute survey.

[cloudflare-workers-and-pages]

Deploying git-vegas with    Cloudflare Pages

Latest commit:	a8f1480
Status:	✅  Deploy successful!
Preview URL:	https://c877d8ce.git-vegas.pages.dev
Branch Preview URL:	https://copilot-sub-pr-29.git-vegas.pages.dev

View logs

[Copilot]

Just as a heads up, I was blocked by some firewall rules while working on your feedback. Expand below for details.

Warning

Firewall rules blocked me from connecting to one or more addresses (expand for details)

I tried to connect to the following addresses, but was blocked by firewall rules:

• https://api.github.com/users/testuser
  • Triggering command: /opt/hostedtoolcache/node/24.13.0/x64/bin/node /opt/hostedtoolcache/node/24.13.0/x64/bin/node --conditions node --conditions development /home/REDACTED/work/git-vegas/git-vegas/node_modules/tinypool/dist/entry/process.js (http block)
• https://api.github.com/users/urluser
  • Triggering command: /opt/hostedtoolcache/node/24.13.0/x64/bin/node /opt/hostedtoolcache/node/24.13.0/x64/bin/node --conditions node --conditions development /home/REDACTED/work/git-vegas/git-vegas/node_modules/tinypool/dist/entry/process.js (http block)

If you need me to access, download, or install something from one of these locations, you can either:

• Configure Actions setup steps to set up my environment, which run before the firewall is enabled
• Add the appropriate URLs or hosts to the custom allowlist in this repository's Copilot coding agent settings (admins only)