refactor: rename feature-dev to do workflow

- Rename skills/feature-dev/ → skills/do/
- Update config.json module name and paths
- Shorter command: /do instead of /feature-dev
- State file: .claude/do.local.md
- Completion promise: <promise>DO_COMPLETE</promise>

Generated with SWE-Agent.ai

Co-Authored-By: SWE-Agent.ai <noreply@swe-agent.ai>

skills/do/README.md

@@ -0,0 +1,86 @@
+# do
+
+7-phase feature development workflow, orchestrating multiple agents via codeagent-wrapper.
+
+## Installation
+
+```bash
+python install.py --module do
+```
+
+Installs:
+- `~/.claude/skills/do/` - skill files
+- hooks auto-merged into `~/.claude/settings.json`
+
+## Usage
+
+```
+/do <feature description>
+```
+
+Examples:
+```
+/do add user login feature
+/do implement order export to CSV
+```
+
+## Workflow Phases
+
+| Phase | Name | Goal |
+|-------|------|------|
+| 1 | Discovery | Understand requirements |
+| 2 | Exploration | Explore codebase |
+| 3 | Clarification | Resolve ambiguities (mandatory) |
+| 4 | Architecture | Design approach |
+| 5 | Implementation | Build (requires approval) |
+| 6 | Review | Code review |
+| 7 | Summary | Document results |
+
+## Agents
+
+- `code-explorer` - Code tracing, architecture mapping
+- `code-architect` - Design approaches, file planning
+- `code-reviewer` - Code review, simplification suggestions
+- `develop` - Implement code, run tests
+
+Agent prompts are in the `agents/` directory. To customize, create same-named files in `~/.codeagent/agents/` to override.
+
+## ~/.codeagent/models.json Configuration
+
+Optional. Uses codeagent-wrapper built-in config by default. To customize agent models:
+
+```json
+{
+  "agents": {
+    "code-explorer": {
+      "backend": "claude",
+      "model": "claude-sonnet-4-5-20250929"
+    },
+    "code-architect": {
+      "backend": "claude",
+      "model": "claude-sonnet-4-5-20250929"
+    },
+    "code-reviewer": {
+      "backend": "claude",
+      "model": "claude-sonnet-4-5-20250929"
+    }
+  }
+}
+```
+
+## Loop Mechanism
+
+A Stop hook is registered after installation. When `/do` runs:
+
+1. Creates `.claude/do.local.md` state file
+2. Updates `current_phase` after each phase
+3. Stop hook checks state, blocks exit if incomplete
+4. Outputs `<promise>DO_COMPLETE</promise>` when finished
+
+Manual exit: Set `active` to `false` in the state file.
+
+## Uninstall
+
+```bash
+python install.py --uninstall --module do
+```