fix: structure dev auto deferred work entries

src/bmm-skills/4-implementation/bmad-dev-auto/step-04-review.md

@@ -42,7 +42,12 @@ Launch two subagents without prior session context.
    - **intent_gap** — Root cause is inside `<frozen-after-approval>`. Revert code changes. Set `{spec_file}` frontmatter status to `blocked`, append `## Auto Run Result` with `Status: blocked`, `Blocking condition: intent gap in frozen intent`, and the intent-gap findings, then terminate cleanly.
    - **bad_spec** — Root cause is outside `<frozen-after-approval>`. Before reverting code: extract KEEP instructions for positive preservation (what worked well and must survive re-derivation). Revert code changes. Read the `## Spec Change Log` in `{spec_file}` and strictly respect all logged constraints when amending the non-frozen sections that contain the root cause. Append a new change-log entry recording: the triggering finding, what was amended, the known-bad state avoided, and the KEEP instructions. Read fully and follow `./step-03-implement.md` to re-derive the code, then this step will run again.
    - **patch** — Auto-fix. These are the only findings that survive loopbacks.
-   - **defer** — Append to `{deferred_work_file}`.
+   - **defer** — Append one new entry to `{deferred_work_file}` using this format. Do not modify existing entries or look for duplicates.
+     ```markdown
+     - source_spec: `{spec_file}`
+       summary: <one sentence>
+       evidence: <why this is real>
+     ```
    - **reject** — Drop silently.
 
 ## Finalize