fix(code): Do not show empty Inbox to users no GitHub social integration

[sortafreel]

Problem

• Inbox showed "Reports (0)" after a PostHog Code update; backend actually had 590 reports for the user (caught by @annikaschmid in Session Replay)
• PR fix(inbox): fix some inbox papercuts #2151 (May 19, @joshsny) added an auto-filter to show only reports assigned to the user on the Inbox visit.
• If the user doesn't have GitHub social logic (or has conflicts) - user sees 0 reports

Changes

• If problems with detecting GitHub login - show all reports. It's better to show too much than "nothing, Inbox doesn't work".
• When the user adds a proper GitHub login - the per-reviewer filter should reapply on the next Inbox visit

How did you test this?

Publish to changelog?

[greptile-apps]

Prompt To Fix All With AI

Fix the following 1 code review issue. Work through them one at a time, proposing concise fixes.

---

### Issue 1 of 1
apps/code/src/renderer/features/inbox/hooks/useSeedSuggestedReviewerFilter.test.ts:15-38
Tests 1 and 2 test the same hook with different `githubLogin` / expected-state combinations and could be collapsed into a single parameterised test per the repo's preference.

```suggestion
  it.each([
    {
      label: "skips seeding when the user has no GitHub login",
      githubLogin: null as string | null,
      expectedFilter: [] as string[],
      expectedInitialized: false,
    },
    {
      label: "seeds with the current user when both UUID and GitHub login are present",
      githubLogin: "octocat",
      expectedFilter: ["user-uuid"],
      expectedInitialized: true,
    },
  ])("$label", ({ githubLogin, expectedFilter, expectedInitialized }) => {
    renderHook(() =>
      useSeedSuggestedReviewerFilter({
        currentUserUuid: "user-uuid",
        githubLogin,
      }),
    );
    const state = useInboxSignalsFilterStore.getState();
    expect(state.suggestedReviewerFilter).toEqual(expectedFilter);
    expect(state.hasInitializedSuggestedReviewerFilter).toBe(expectedInitialized);
  });
```

_{Reviews (1): Last reviewed commit: "fix: Do not show empty Inbox to users no..." | Re-trigger Greptile}