feat(ultraplan-local): v1.6.0 — /ultraresearch-local deep research command

Add /ultraresearch-local for structured research combining local codebase
analysis with external knowledge via parallel agent swarms. Produces research
briefs with triangulation, confidence ratings, and source quality assessment.

New command: /ultraresearch-local with modes --quick, --local, --external, --fg.
New agents: research-orchestrator (opus), docs-researcher, community-researcher,
security-researcher, contrarian-researcher, gemini-bridge (all sonnet).
New template: research-brief-template.md.

Integration: --research flag in /ultraplan-local accepts pre-built research
briefs (up to 3), enriches the interview and exploration phases. Planning
orchestrator cross-references brief findings during synthesis.

Design principle: Context Engineering — right information to right agent at
right time. Research briefs are structured artifacts in the pipeline:
ultraresearch → brief → ultraplan --research → plan → ultraexecute.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

.claude/rules/state-management.md

@@ -0,0 +1,15 @@
+# State Update Rule
+
+After EVERY phase completes, you MUST update state.yaml using the Write tool (full file overwrite):
+
+1. Read: `~/.claude/config-audit/sessions/{session-id}/state.yaml`
+2. Update these fields:
+   - `current_phase`: the phase that just completed
+   - `completed_phases`: add the phase to array
+   - `next_phase`: the next phase in workflow
+   - `updated_at`: current timestamp
+3. Write the full file back
+
+**DO NOT output the phase summary until state.yaml is updated.**
+
+This ensures the workflow can resume correctly if interrupted.