[repro] findOne returns array instead of single object in angular-db (issue #1261)

[claude]

Summary

• Adds a test that asserts injectLiveQuery with findOne() returns a single object instead of an array
• Test currently fails on main because data() returns [{ id: '3', ... }] (array) instead of { id: '3', ... } (object)

Linked issue: #1261

What the test asserts

• Array.isArray(data()) is false (currently true)
• data() matches { id: '3', name: 'John Smith' } as a plain object

How to run

pnpm --filter @tanstack/angular-db test -- --run

Observed failure

AssertionError: expected true to be false // Object.is equality
  - Expected: false
  + Received: true
  ❯ tests/inject-live-query.test.ts:781:37

🤖 Generated with Claude Code

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commit: a137fca

[github-actions]

Size Change: 0 B

Total Size: 92.1 kB

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