refactor!: major directory restructuring and npx support

- Create agents/ directory, move bmad, requirements, development-essentials
- Remove docs/, hooks/, dev-workflow/ directories
- Add npx support via github:cexll/myclaude
- Add bin/cli.js with --update command for installed modules
- Add package.json, skills/README.md, PLUGIN_README.md
- Update all references across config.json, README, marketplace.json
- Change default module from dev to do
- Update CHANGELOG with all 59 tags

BREAKING CHANGE: Directory structure changed, docs/hooks removed

Generated with SWE-Agent.ai

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

agents/requirements/README.md

@@ -0,0 +1,90 @@
+# requirements - Requirements-Driven Workflow
+
+Lightweight requirements-to-code pipeline with interactive quality gates.
+
+## Installation
+
+```bash
+python install.py --module requirements
+```
+
+## Usage
+
+```bash
+/requirements-pilot <FEATURE_DESCRIPTION> [OPTIONS]
+```
+
+### Options
+
+| Option | Description |
+|--------|-------------|
+| `--skip-tests` | Skip testing phase entirely |
+| `--skip-scan` | Skip initial repository scanning |
+
+## Workflow Phases
+
+| Phase | Description | Output |
+|-------|-------------|--------|
+| 0 | Repository scanning | `00-repository-context.md` |
+| 1 | Requirements confirmation | `requirements-confirm.md` (90+ score required) |
+| 2 | Implementation | Code + `requirements-spec.md` |
+
+## Quality Scoring (100-point system)
+
+| Category | Points | Focus |
+|----------|--------|-------|
+| Functional Clarity | 30 | Input/output specs, success criteria |
+| Technical Specificity | 25 | Integration points, constraints |
+| Implementation Completeness | 25 | Edge cases, error handling |
+| Business Context | 20 | User value, priority |
+
+## Sub-Agents
+
+| Agent | Role |
+|-------|------|
+| `requirements-generate` | Create technical specifications |
+| `requirements-code` | Implement functionality |
+| `requirements-review` | Code quality evaluation |
+| `requirements-testing` | Test case creation |
+
+## Approval Gate
+
+One mandatory stop point after Phase 1:
+- Requirements must achieve 90+ quality score
+- User must explicitly approve before implementation begins
+
+## Testing Decision
+
+After code review passes (≥90%):
+- `--skip-tests`: Complete without testing
+- No option: Interactive prompt with smart recommendations based on task complexity
+
+## Output Structure
+
+```
+.claude/specs/{feature_name}/
+├── 00-repository-context.md
+├── requirements-confirm.md
+└── requirements-spec.md
+```
+
+## When to Use
+
+- Quick prototypes
+- Well-defined features
+- Smaller scope tasks
+- When full BMAD workflow is overkill
+
+## Directory Structure
+
+```
+agents/requirements/
+├── README.md
+├── commands/
+│   └── requirements-pilot.md
+└── agents/
+    ├── requirements-generate.md
+    ├── requirements-code.md
+    ├── requirements-review.md
+    └── requirements-testing.md
+```