Expose MCP interview reasoning metadata

[Q00]

Summary

• add compact internal_reasoning and structured interview_reasoning metadata to ouroboros_interview responses
• cover start, resume, answer, completion, plugin delegation, and recoverable question-generation failure paths
• extend interview response diagnostics tests to assert the metadata contract

Tests

• uv run ruff check src/ouroboros/mcp/tools/authoring_handlers.py tests/unit/mcp/tools/test_interview_response_diagnostics.py
• uv run pytest tests/unit/mcp/tools/test_interview_response_diagnostics.py tests/unit/mcp/tools/test_interview_persists_session_on_failure.py
• uv run pytest tests/unit/mcp/tools/test_interview_*.py tests/unit/mcp/tools/test_round5_fixes.py

[ouroboros-agent]

Review — ouroboros-agent[bot]

Verdict: APPROVE

Branch: feat/mcp-interview-reasoning-surface | 2 files, +204/-3 | CI: Bridge TypeScript pass 14s https://github.com/Q00/ouroboros/actions/runs/26111689250/job/76790306427
Scope: diff-only
HEAD checked: 36eed6912c88c0828b9b9f14045779a4972ca951

What Improved

• Added compact reasoning metadata across the interview response paths while preserving existing response envelopes.
• Added focused assertions for start, resume-pending, and answer metadata; focused tests and ruff pass locally.

Issue Requirements

Requirement	Status
No linked issue or identifiable issue requirements in issue.json.	N/A

Prior Findings Status

Prior Finding	Status
No prior blocker findings were supplied in prev_review.txt; previous bot review approved the PR.	WITHDRAWN — no blocker exists to maintain or modify against current HEAD 36eed6912c88c0828b9b9f14045779a4972ca951.

Blockers

#	File:Line	Severity	Confidence	Finding

Follow-ups

#	File:Line	Priority	Confidence	Suggestion

Test Coverage

Coverage is adequate for this PR scope. tests/unit/mcp/tools/test_interview_response_diagnostics.py now verifies reasoning metadata on the main question-bearing paths, and tests/unit/mcp/tools/test_interview_persists_session_on_failure.py covers recoverable failure persistence behavior. Verified locally: uv run pytest tests/unit/mcp/tools/test_interview_response_diagnostics.py tests/unit/mcp/tools/test_interview_persists_session_on_failure.py passed 16 tests; ruff passed for both changed files.

Merge Recommendation

• Ready to merge.

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ouroboros-agent[bot]

[Q00]

@ouroboros-bot re review ping