test: add unit tests for internal/status — health check suite

[jpleva91]

Problem

internal/status/status.go has zero test coverage. The Run() function performs 5 health checks (binary, policy, Claude hooks, Copilot hooks, identity). If these misreport status, chitin status gives users wrong information about their setup.

Acceptance Criteria

• Test Run() returns a list of Check results
• Test checkPolicy() returns OK=true when chitin.yaml exists and OK=false when missing
• Test checkClaudeHooks() returns OK=true when settings.json contains "chitin"
• Test checkCopilotHooks() returns OK=true when hooks.json contains "chitin"
• Test checkIdentity() returns OK=true when .chitin-identity exists
• Test Print() returns exit code 0 when all critical checks pass
• Test Print() returns exit code 1 when a critical check fails
• Test Print() quiet mode output
• All tests use t.TempDir() for filesystem isolation
• All tests pass with go test ./internal/status/...

Hints

• File: internal/status/status.go
• Functions: Run(projectDir string), Print(checks []Check, quiet bool), checkPolicy(), checkClaudeHooks(), checkCopilotHooks(), checkIdentity()
• Type: Check{Name, OK, Detail, Critical}
• Note: checkBinary() depends on PATH — may need to skip or mock
• Create test file: internal/status/status_test.go

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[jpleva91]

🧠 Triage complete

Tier B — Needs Planning. Issue requires scoping and decomposition before implementation.

Reason: triage error (defaulting to safe): API returned 404: {"type":"error","error":{"type":"not_found_error","message":"model: claude-3-haiku-20241022"},"request_id":"req_011CZrvHtna93tGvqBsMveve"}
Confidence: 0.00

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[jpleva91]

@claude Please implement this issue. Read the acceptance criteria carefully, check the source files mentioned in Hints, and create the test file. Run go test to verify all tests pass before finishing.

[jpleva91]

Test coverage for internal/status health checks; medium complexity, safe to automate.

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