refactor(clarity-assist): extract skills from commands

Extract shared knowledge from clarify.md and quick-clarify.md into
reusable skill files:
- 4d-methodology.md: Core 4-phase clarification process
- nd-accommodations.md: Neurodivergent-friendly question patterns
- clarification-techniques.md: Anti-patterns and question templates
- escalation-patterns.md: Mode switching guidelines

Commands slimmed from 149/96 lines to 44/49 lines respectively.

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

plugins/pr-review/commands/pr-findings.md

@@ -2,148 +2,44 @@
 
 ## Visual Output
 
-When executing this command, display the plugin header:
+Display header: `PR-REVIEW - Findings`
 
-```
-┌──────────────────────────────────────────────────────────────────┐
-│  🔍 PR-REVIEW · Findings                                          │
-└──────────────────────────────────────────────────────────────────┘
-```
+## Skills to Load
 
-Then proceed with the findings display.
-
-## Purpose
-
-List and filter findings from a previous PR review by category, severity, or confidence level.
+- skills/mcp-tools-reference.md
+- skills/review-patterns/confidence-scoring.md
+- skills/output-formats.md
 
 ## Usage
 
 ```
-/pr-findings <pr-number> [filters]
+/pr-findings <pr-number> [--category <cat>] [--severity <sev>] [--confidence <min>] [--file <pattern>] [--compact] [--json]
 ```
 
-### Filters
-
-```
---category <cat>      Filter by category (security, performance, maintainability, tests)
---severity <sev>      Filter by severity (critical, major, minor, suggestion)
---confidence <min>    Minimum confidence score (0.0-1.0)
---file <pattern>      Filter by file path pattern
-```
-
-## Examples
-
-```
-# Show only security findings
-/pr-findings 123 --category security
-
-# Show critical and major issues only
-/pr-findings 123 --severity critical,major
-
-# Show high-confidence findings only
-/pr-findings 123 --confidence 0.8
-
-# Show findings in specific files
-/pr-findings 123 --file src/api/*
-```
-
-## Behavior
+## Workflow
 
 ### Without Previous Review
 
-If no review exists for this PR:
-
-```
-No review found for PR #123.
-
-Would you like to:
-1. Run full /pr-review now
-2. Run quick /pr-summary
-3. Cancel
-```
+Prompt: "No review found. Run /pr-review, /pr-summary, or cancel?"
 
 ### With Previous Review
 
-Display filtered findings:
-
-```
-═══════════════════════════════════════════════════
-PR #123 Findings (filtered: security)
-═══════════════════════════════════════════════════
-
-Showing 3 of 8 total findings
-
-───────────────────────────────────────────────────
-
-[SEC-001] SQL Injection Vulnerability
-Confidence: 0.95 (HIGH) | Severity: Critical
-File: src/api/users.ts:45
-
-The query uses string interpolation without parameterization.
-
-Fix: Use parameterized queries.
-
-───────────────────────────────────────────────────
-
-[SEC-002] Missing Input Validation
-Confidence: 0.88 (MEDIUM) | Severity: Major
-File: src/api/auth.ts:23
-
-User input is passed directly to database without validation.
-
-Fix: Add input validation middleware.
-
-───────────────────────────────────────────────────
-
-[SEC-003] Sensitive Data in Logs
-Confidence: 0.72 (MEDIUM) | Severity: Minor
-File: src/utils/logger.ts:15
-
-Password field may be logged in debug mode.
-
-Fix: Sanitize sensitive fields before logging.
-
-═══════════════════════════════════════════════════
-```
+1. Load findings from previous review
+2. Apply filters (category, severity, confidence, file)
+3. Display using format from `skills/output-formats.md`
 
 ## Output Formats
 
-### Default (Detailed)
+Reference `skills/output-formats.md`:
+- **Detailed** (default) - Full finding
+- **Compact** (`--compact`) - Single line
+- **JSON** (`--json`) - Structured data
 
-Full finding details with descriptions and fixes.
-
-### Compact (--compact)
+## Examples
 
+```bash
+/pr-findings 123 --category security
+/pr-findings 123 --severity critical,major
+/pr-findings 123 --confidence 0.8
+/pr-findings 123 --file src/api/*
 ```
-SEC-001 | Critical | 0.95 | src/api/users.ts:45 | SQL Injection
-SEC-002 | Major    | 0.88 | src/api/auth.ts:23  | Missing Validation
-SEC-003 | Minor    | 0.72 | src/utils/logger.ts | Sensitive Logs
-```
-
-### JSON (--json)
-
-```json
-{
-  "pr": 123,
-  "findings": [
-    {
-      "id": "SEC-001",
-      "category": "security",
-      "severity": "critical",
-      "confidence": 0.95,
-      "file": "src/api/users.ts",
-      "line": 45,
-      "title": "SQL Injection Vulnerability",
-      "description": "...",
-      "fix": "..."
-    }
-  ]
-}
-```
-
-## Use Cases
-
-- Focus on specific issue types
-- Track resolution of findings
-- Export findings for tracking
-- Quick reference during fixes