fix(proposals): audit before decided-move; close cli parity

[plind-junior]

two p0 integrity items from the roadmap (.superpowers/roadmap.md step 2):

• approve/reject/expire recorded the audit event only after moving the proposal to decided/, so a crash between the two produced a durable decision with no authoritative history. the decision event is now written first; a crash leaves a pending proposal with its event, and the approve retry path is already guarded by the existing-artifact check. covered by crash-simulation tests.
• the three-surface parity promise was only enforced for jsonl + mcp. test_capabilities now maps every kb.* method to a cli command (default name rule + explicit alias table). five methods had no cli mirror at all — propose-delete, source list, session list, session transcript, session summarize — and gain commands that reuse the same backends as the jsonl handlers, including the degraded-shape behaviour for absent sessions.

full local gate green: pytest (non-embeddings), mypy, ruff.

Summary by CodeRabbit

• New Features

  • Added a review-gated propose-delete command with optional rationale and dry-run support.
  • Added commands to list registered sources and captured sessions, with JSON output options.
  • Added session transcript and summarization commands for inspecting and preparing session content.

• Bug Fixes

  • Improved audit reliability by recording proposal decisions before finalizing proposal state.

• Tests

  • Added coverage for new CLI commands, error handling, command parity, and audit recovery behavior.

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Review details

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro Plus

Run ID: f5d26822-2b32-40be-af19-edc6b2c5f928

📥 Commits

Reviewing files that changed from the base of the PR and between 03b21c6 and d2a4200.

📒 Files selected for processing (1)

• src/vouch/cli.py

📝 Walkthrough

Walkthrough

The CLI adds deletion proposal, source listing, and session inspection commands. Proposal approval, rejection, and expiration now audit before moving proposals to the decided state, with regression tests and CLI capability parity coverage.

Changes

CLI proposal and introspection surfaces

Layer / File(s)	Summary
CLI proposal and session surfaces src/vouch/cli.py, tests/test_cli.py, tests/test_capabilities.py	Adds propose-delete, source list, and session commands for listing, transcript retrieval, and summarization, with JSON/text output, error handling, regression tests, and CLI capability parity validation.
Audit-before-decision ordering src/vouch/proposals.py, tests/test_audit.py	Writes approval, rejection, and expiration audit events before moving proposals to decided/, with crash simulation tests for each path.

Estimated code review effort: 3 (Moderate) | ~20 minutes

Sequence Diagram(s)

sequenceDiagram
  participant CLI as vouch session summarize
  participant Summarizer as session_split.summarize
  participant Proposals as pending page proposals
  CLI->>Summarizer: session_id and mode
  Summarizer->>Proposals: create pending page proposals
  Proposals-->>CLI: JSON result

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Possibly related PRs

• vouchdev/vouch#31: Introduces the _cli_errors() mechanism used by the new CLI proposal and session commands.
• vouchdev/vouch#111: Also modifies approval workflow code in src/vouch/proposals.py.

Suggested reviewers: dripsmvcp, tet-9, jsdevninja, claytonlin1110, galuis116

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title is specific and reflects the two main changes: audit ordering in proposals and CLI parity work.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

✨ Finishing Touches

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• Create PR with unit tests
• Commit unit tests in branch fix/audit-order-and-cli-parity

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Actionable comments posted: 1

🤖 Prompt for all review comments with AI agents

Verify each finding against current code. Fix only still-valid issues, skip the
rest with a brief reason, keep changes minimal, and validate.

Inline comments:
In `@src/vouch/cli.py`:
- Around line 2240-2250: Update the --mode option on session_summarize_cmd to
use click.Choice with the allowed values "auto", "split", and "mechanical",
preserving the existing default of "auto" and passing the validated mode to
session_split.summarize.

🪄 Autofix (Beta)

Fix all unresolved CodeRabbit comments on this PR:

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• Create a new PR with the fixes

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ℹ️ Review info

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro Plus

Run ID: 919d070a-0039-4668-8961-5cecde95663f

📥 Commits

Reviewing files that changed from the base of the PR and between 5363642 and 03b21c6.

📒 Files selected for processing (5)

• src/vouch/cli.py
• src/vouch/proposals.py
• tests/test_audit.py
• tests/test_capabilities.py
• tests/test_cli.py