Add continuity-guard skill skeleton and doctor script

skills/continuity-guard/references/doctor-spec.md

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+# continuity doctor spec
+
+## PASS
+The checked item exists and matches the required structure.
+
+## WARN
+The item exists but is drifting:
+- file too long
+- required text partly missing
+- structure present but not ideal
+
+## FAIL
+The item is missing or materially broken:
+- missing CURRENT_STATE.md
+- missing required sections
+- missing continuity rules in AGENTS.md
+
+## Minimal checks
+1. `main/memory/CURRENT_STATE.md` exists
+2. each agent workspace has `memory/CURRENT_STATE.md`
+3. every `CURRENT_STATE.md` contains:
+   - `## In Flight`
+   - `## Blocked / Waiting`
+   - `## Recently Finished`
+   - `## Next`
+   - `## Reset Summary`
+4. main `AGENTS.md` contains continuity guidance and dual reporting protocol markers
+5. line-count caps are respected
+
+## Suggested actions on failure
+- create missing files from template
+- restore missing AGENTS continuity section
+- trim oversized CURRENT_STATE files
+- rerun doctor after repair

skills/continuity-guard/references/template.md

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+# CURRENT_STATE template
+
+## main agent (expanded)
+
+```md
+# CURRENT_STATE
+
+_Last updated: YYYY-MM-DD HH:MM Australia/Brisbane_
+
+## In Flight
+- [status] task — owner — latest milestone
+
+## Blocked / Waiting
+- item — blocker / waiting on
+
+## Recently Finished
+- result — why it still matters now
+
+## Next
+- next action
+
+## Reset Summary
+- one short paragraph explaining what matters if a new session starts now
+```
+
+Capacity:
+- target 25-40 lines
+- hard cap 50 lines
+- In Flight max 5
+- Blocked / Waiting max 5
+- Recently Finished max 3
+- Next max 5
+
+## other agents (standard)
+Use the same template, but keep it smaller.
+
+Capacity:
+- target 15-25 lines
+- hard cap 30 lines
+- In Flight max 3
+- Blocked / Waiting max 3
+- Recently Finished max 2
+- Next max 3
+
+## Allowed status values
+- planned
+- dispatched
+- in_progress
+- blocked
+- reviewing
+- done