feat: Add templates for epics, product brief, and requirements documentation

- Introduced a comprehensive template for generating epics and stories in Phase 5, including an index and individual epic files.
- Created a product brief template for Phase 2 to summarize product vision, goals, and target users.
- Developed a requirements PRD template for Phase 3, outlining functional and non-functional requirements, along with traceability matrices.

feat: Implement tech debt roles for assessment, execution, planning, scanning, validation, and analysis

- Added roles for tech debt assessment, executor, planner, scanner, validator, and analyst, each with defined phases and processes for managing technical debt.
- Each role includes structured input requirements, processing strategies, and output formats to ensure consistency and clarity in tech debt management.

.claude/skills/team-ultra-analyze/roles/explorer/role.md

@@ -0,0 +1,74 @@
+---
+role: explorer
+prefix: EXPLORE
+inner_loop: false
+message_types:
+  success: exploration_ready
+  error: error
+---
+
+# Codebase Explorer
+
+Explore codebase structure through cli-explore-agent, collecting structured context (files, patterns, findings) for downstream analysis. One explorer per analysis perspective.
+
+## Phase 2: Context & Scope Assessment
+
+| Input | Source | Required |
+|-------|--------|----------|
+| Task description | From task subject/description | Yes |
+| Session path | Extracted from task description | Yes |
+
+1. Extract session path, topic, perspective, dimensions from task description:
+
+| Field | Pattern | Default |
+|-------|---------|---------|
+| sessionFolder | `session:\s*(.+)` | required |
+| topic | `topic:\s*(.+)` | required |
+| perspective | `perspective:\s*(.+)` | "general" |
+| dimensions | `dimensions:\s*(.+)` | "general" |
+
+2. Determine exploration number from task subject (EXPLORE-N)
+3. Build exploration strategy by perspective:
+
+| Perspective | Focus | Search Depth |
+|-------------|-------|-------------|
+| general | Overall codebase structure and patterns | broad |
+| technical | Implementation details, code patterns, feasibility | medium |
+| architectural | System design, module boundaries, interactions | broad |
+| business | Business logic, domain models, value flows | medium |
+| domain_expert | Domain patterns, standards, best practices | deep |
+
+## Phase 3: Codebase Exploration
+
+Use CLI tool for codebase exploration:
+
+```javascript
+Bash({
+  command: `ccw cli -p "PURPOSE: Explore codebase for <topic> from <perspective> perspective; success = structured findings with relevant files and patterns
+TASK: • Run module depth analysis • Search for topic-related patterns • Identify key files and their relationships • Extract architectural insights
+MODE: analysis
+CONTEXT: @**/* | Memory: Session <session-folder>, perspective <perspective>
+EXPECTED: JSON output with: relevant_files (path, relevance, summary), patterns, key_findings, module_map, questions_for_analysis, _metadata (perspective, search_queries, timestamp)
+CONSTRAINTS: Focus on <perspective> angle - <strategy.focus> | Write to <session>/explorations/exploration-<num>.json
+" --tool gemini --mode analysis --rule analysis-analyze-code-patterns`,
+  run_in_background: false
+})
+```
+
+**ACE fallback** (when CLI produces no output):
+```javascript
+mcp__ace-tool__search_context({ project_root_path: ".", query: "<topic> <perspective>" })
+```
+
+## Phase 4: Result Validation
+
+| Check | Method | Action on Failure |
+|-------|--------|-------------------|
+| Output file exists | Read output path | Create empty result, run ACE fallback |
+| Has relevant_files | Array length > 0 | Trigger ACE supplementary search |
+| Has key_findings | Array length > 0 | Note partial results, proceed |
+
+Write validated exploration to `<session>/explorations/exploration-<num>.json`.
+
+Update `<session>/wisdom/.msg/meta.json` under `explorer` namespace:
+- Read existing -> merge `{ "explorer": { perspective, file_count, finding_count } }` -> write back