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-lifecycle-v4/specs/knowledge-transfer.md

@@ -0,0 +1,96 @@
+# Knowledge Transfer Protocols
+
+## 1. Transfer Channels
+
+| Channel | Method | Producer | Consumer |
+|---------|--------|----------|----------|
+| Artifacts | Files in `<session>/artifacts/` | Task executor | Next task in pipeline |
+| State Updates | `team_msg(type="state_update")` | Task executor | Coordinator + downstream |
+| Wisdom | Append to `<session>/wisdom/*.md` | Any role | All roles |
+| Context Accumulator | In-memory aggregation | Inner loop only | Current task |
+| Exploration Cache | `<session>/explorations/` | Analyst / researcher | All roles |
+
+## 2. Context Loading Protocol (Before Task Execution)
+
+Every role MUST load context in this order before starting work.
+
+| Step | Action | Required |
+|------|--------|----------|
+| 1 | `team_msg(operation="get_state", role=<upstream>)` | Yes |
+| 2 | Read artifact files from upstream state's `ref` paths | Yes |
+| 3 | Read `<session>/wisdom/*.md` if exists | Yes |
+| 4 | Check `<session>/explorations/cache-index.json` before new exploration | If exploring |
+
+**Loading rules**:
+- Never skip step 1 -- state contains key decisions and findings
+- If `ref` path in state does not exist, log warning and continue
+- Wisdom files are append-only -- read all entries, newest last
+
+## 3. Context Publishing Protocol (After Task Completion)
+
+| Step | Action | Required |
+|------|--------|----------|
+| 1 | Write deliverable to `<session>/artifacts/<task-id>-<name>.md` | Yes |
+| 2 | Send `team_msg(type="state_update")` with payload (see schema below) | Yes |
+| 3 | Append wisdom entries for learnings, decisions, issues found | If applicable |
+
+## 4. State Update Schema
+
+Sent via `team_msg(type="state_update")` on task completion.
+
+```json
+{
+  "status": "task_complete",
+  "task_id": "<TASK-NNN>",
+  "ref": "<session>/artifacts/<filename>",
+  "key_findings": [
+    "Finding 1",
+    "Finding 2"
+  ],
+  "decisions": [
+    "Decision with rationale"
+  ],
+  "files_modified": [
+    "path/to/file.ts"
+  ],
+  "verification": "self-validated | peer-reviewed | tested"
+}
+```
+
+**Field rules**:
+- `ref`: Always an artifact path, never inline content
+- `key_findings`: Max 5 items, each under 100 chars
+- `decisions`: Include rationale, not just the choice
+- `files_modified`: Only for implementation tasks
+- `verification`: One of `self-validated`, `peer-reviewed`, `tested`
+
+## 5. Exploration Cache Protocol
+
+Prevents redundant research across tasks and discussion rounds.
+
+| Step | Action |
+|------|--------|
+| 1 | Read `<session>/explorations/cache-index.json` |
+| 2 | If angle already explored, read cached result from `explore-<angle>.json` |
+| 3 | If not cached, perform exploration |
+| 4 | Write result to `<session>/explorations/explore-<angle>.json` |
+| 5 | Update `cache-index.json` with new entry |
+
+**cache-index.json format**:
+```json
+{
+  "entries": [
+    {
+      "angle": "competitor-analysis",
+      "file": "explore-competitor-analysis.json",
+      "created_by": "RESEARCH-001",
+      "timestamp": "2026-01-15T10:30:00Z"
+    }
+  ]
+}
+```
+
+**Rules**:
+- Cache key is the exploration `angle` (normalized to kebab-case)
+- Cache entries never expire within a session
+- Any role can read cached explorations; only the creator updates them