feat(skills): add autoresearch skill for autonomous research orchestration

Add a new research skill that enables continuous, self-directed research
with a two-loop architecture:

- Inner loop: Rapid experiment iteration with measurable outcomes
- Outer loop: Periodic synthesis, pattern discovery, and direction setting

Features:
- Research workspace templates (state, findings, log)
- Example project (LoRA rank study)
- Configuration options for loop intervals and auto-commit
- Integration with existing research skills (arxiv, paper-writing)

Updated research/DESCRIPTION.md to include autoresearch in the skill overview.

skills/research/autoresearch/templates/findings.md

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+# Findings: {{PROJECT_NAME}}
+
+**Research Question:** {{RESEARCH_QUESTION}}
+
+**Last Updated:** {{LAST_UPDATED}}
+
+---
+
+## Current Understanding
+
+### What We Know So Far
+
+[Summarize the current state of knowledge. 2-4 paragraphs.]
+
+### Key Patterns and Insights
+
+| Pattern | Evidence | Confidence |
+|---------|----------|------------|
+| [Pattern 1] | [Which experiments support this] | High/Medium/Low |
+| [Pattern 2] | [Which experiments support this] | High/Medium/Low |
+
+### Mechanistic Understanding
+
+[If applicable: What mechanisms explain the results?]
+
+---
+
+## Lessons and Constraints
+
+### What Works
+
+- [Specific finding with context]
+- [Another finding]
+
+### What Doesn't Work
+
+- [Failed approach and why]
+- [Constraint discovered]
+
+### Critical Parameters
+
+| Parameter | Sweet Spot | Why |
+|-----------|------------|-----|
+| [Param 1] | [Value/range] | [Explanation] |
+
+---
+
+## Open Questions
+
+### High Priority
+
+1. [Question that would change the story if answered]
+2. [Another critical question]
+
+### Medium Priority
+
+1. [Nice to know but not blocking]
+
+### Answered
+
+1. ~~[Question]~~ → Answer: [Brief answer with evidence]
+
+---
+
+## Narrative Arc
+
+[For paper writing: What's the story? What would the abstract say?]
+
+### Contribution Sketch
+
+[1-2 sentences on what this research contributes]
+
+### Implications
+
+[Who cares? Why does this matter?]
+
+---
+
+## Next Steps
+
+### Immediate (Next 1-3 Experiments)
+
+- [ ] [Specific experiment]
+- [ ] [Another experiment]
+
+### Medium Term
+
+- [ ] [Broader direction]
+
+### If Current Direction Fails
+
+- [Pivot option 1]
+- [Pivot option 2]

skills/research/autoresearch/templates/research-log.md

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+# Research Log: {{PROJECT_NAME}}
+
+**Research Question:** {{RESEARCH_QUESTION}}
+
+---
+
+## Bootstrap Phase
+
+### {{DATE}} — Project Initialization
+
+- **Action:** Created workspace, initialized state files
+- **Research Question:** {{RESEARCH_QUESTION}}
+- **Initial Thoughts:** [What makes this interesting?]
+
+### {{DATE}} — Literature Search
+
+- **Sources:** arxiv, semantic scholar, web search
+- **Key Papers:**
+  - [Paper 1] — [Key finding relevant to question]
+  - [Paper 2] — [Key finding]
+- **Gap Identified:** [What's missing in existing work?]
+
+### {{DATE}} — Hypothesis Formation
+
+- **H001:** [Description] → Prediction: [Specific prediction]
+- **H002:** [Description] → Prediction: [Specific prediction]
+- **H003:** [Description] → Prediction: [Specific prediction]
+
+---
+
+## Inner Loop Log
+
+### {{DATE}} — Experiment H001
+
+- **Hypothesis:** H001
+- **Protocol:** [What was changed, what was predicted]
+- **Git Commit:** `research(protocol): H001 — [description]`
+- **Status:** [Running/Completed/Failed]
+- **Results:**
+  - Metric: [Value]
+  - Baseline: [Value]
+  - Delta: [+/-X]
+- **Interpretation:** [What this means]
+- **Next Action:** [Continue/Adjust/Pivot]
+
+### {{DATE}} — Experiment H002
+
+[Same format...]
+
+---
+
+## Outer Loop Log
+
+### {{DATE}} — Reflection #1 (After {{N}} experiments)
+
+- **Experiments Reviewed:** H001-H00N
+- **Patterns Observed:**
+  - [Pattern 1]
+  - [Pattern 2]
+- **Updated Understanding:** [New insights]
+- **Direction Decision:** [DEEPEN/BROADEN/PIVOT/CONCLUDE]
+- **Rationale:** [Why this direction?]
+- **New Hypotheses:**
+  - H00N+1: [Description]
+  - H00N+2: [Description]
+
+---
+
+## Direction Changes
+
+### {{DATE}} — PIVOT: [New Direction]
+
+- **From:** [Old direction/assumption]
+- **To:** [New direction]
+- **Trigger:** [What result/surprise caused this?]
+- **New Research Question:** [If changed]
+
+---
+
+## Conclusion
+
+### {{DATE}} — Research Concluded
+
+- **Final Status:** [Completed/Partial/Abandoned]
+- **Key Findings:**
+  1. [Finding 1]
+  2. [Finding 2]
+- **Contribution:** [What this adds to the field]
+- **Limitations:** [What we didn't test/couldn't conclude]
+- **Future Work:** [What someone should do next]

skills/research/autoresearch/templates/research-state.yaml

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+# Research State
+# Central tracking file for autoresearch project
+# Updated automatically by the agent — do not edit manually
+
+project:
+  name: "{{PROJECT_NAME}}"
+  created_at: "{{CREATED_AT}}"
+  research_question: "{{RESEARCH_QUESTION}}"
+  status: "bootstrapping"  # bootstrapping | active | paused | concluding | completed
+
+bootstrap:
+  literature_searched: false
+  initial_hypotheses_formed: false
+  evaluation_metric_defined: false
+  baseline_established: false
+
+loops:
+  inner_loop_count: 0
+  outer_loop_count: 0
+  last_inner_loop_at: null
+  last_outer_loop_at: null
+
+direction:
+  current: "explore"  # explore | deepen | broaden | pivot | conclude
+  rationale: "Initial exploration phase"
+  next_milestone: "Complete first 3 experiments"
+
+hypotheses:
+  # Example structure — replace with actual hypotheses
+  H001:
+    description: "{{HYPOTHESIS_DESCRIPTION}}"
+    status: "untested"  # untested | running | completed | refuted | supported
+    prediction: "{{PREDICTION}}"
+    priority: 1
+    created_at: "{{CREATED_AT}}"
+    completed_at: null
+    result_summary: null
+    experiment_slug: null
+
+metrics:
+  primary: "{{PRIMARY_METRIC}}"  # e.g., "val_loss", "accuracy", "convergence_steps"
+  baseline_value: null
+  target_value: null
+  current_best: null
+  optimization_direction: "minimize"  # minimize | maximize
+
+trajectory:
+  # Auto-populated from experiments
+  # - experiment_id: run_001
+  #   hypothesis: H001
+  #   metric_value: 0.847
+  #   baseline: 0.812
+  #   delta: "+0.035"
+  #   wall_time_min: 23
+  #   change_summary: "Added cosine annealing"
+
+resources:
+  literature_papers: []
+  related_work_notes: null
+  code_references: []
+
+continuity:
+  last_session_at: "{{CREATED_AT}}"
+  next_scheduled_loop: null
+  current_experiment: null
+  pending_tasks: []
+
+notes: |
+  # Agent notes — context for next session
+  # What was I doing? What's next?