Apply ch-bootstrap convention (partial)

Existing life-helper already has the Redmine project (id=12), 8 persona
categories, and Gitea remote, so this commit applies only the local-side
pieces of the cloud-handson convention:

- .claude/settings.json (safe-but-maximal permissions: allow-all + deny dangerous)
- .claude/agents/ (8 persona subagents: planner/architect/designer/developer/reviewer/qa/release/documenter)
- .claude/workflows/persona-pipeline.js
- CLAUDE.md (Design-First hard gate)
- docs/ skeleton (Diátaxis + ADR + design templates + QUEUE-PROTOCOL)
- scripts/enqueue.sh
- .env.example

.gitignore: switched .claude/ blanket-ignore to .claude/settings.local.json
so the new settings/agents/workflows actually commit. .env and nutrition/ stay ignored.

Existing root SoT files (huberman-protocols.md, habit-*.md, data-model.md,
schema/) are untouched.

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

.claude/settings.json

@@ -0,0 +1,35 @@
+{
+  "permissions": {
+    "allow": [
+      "Bash",
+      "Read",
+      "Edit",
+      "Write",
+      "WebFetch",
+      "WebSearch",
+      "mcp__searxng__web_search",
+      "mcp__oracle-26ai-vector__search_similar"
+    ],
+    "deny": [
+      "Bash(rm -rf /)",
+      "Bash(rm -rf /*)",
+      "Bash(rm -rf ~)",
+      "Bash(rm -rf ~/*)",
+      "Bash(sudo rm -rf *)",
+      "Edit(//Users/joungminko/.claude/settings.json)",
+      "Write(//Users/joungminko/.claude/settings.json)",
+      "Edit(//Users/joungminko/.claude/settings.local.json)",
+      "Write(//Users/joungminko/.claude/settings.local.json)",
+      "Edit(//Users/joungminko/.claude/agents/**)",
+      "Write(//Users/joungminko/.claude/agents/**)",
+      "Edit(//Users/joungminko/.claude/commands/**)",
+      "Write(//Users/joungminko/.claude/commands/**)",
+      "Edit(//Users/joungminko/.claude/CLAUDE.md)",
+      "Write(//Users/joungminko/.claude/CLAUDE.md)",
+      "Edit(//Users/joungminko/.gitconfig)",
+      "Write(//Users/joungminko/.gitconfig)",
+      "Edit(.git/**)",
+      "Write(.git/**)"
+    ]
+  }
+}