feat: consolidate all Anthropic plugins into ECC v2.0.0

Ports functionality from 10+ separate plugins into ECC so users only
need one plugin installed. Consolidates: pr-review-toolkit, feature-dev,
commit-commands, hookify, code-simplifier, security-guidance,
frontend-design, explanatory-output-style, and personal skills.

New agents (8): code-architect, code-explorer, code-simplifier,
comment-analyzer, conversation-analyzer, pr-test-analyzer,
silent-failure-hunter, type-design-analyzer

New commands (9): commit, commit-push-pr, clean-gone, review-pr,
feature-dev, hookify, hookify-list, hookify-configure, hookify-help

New skills (8): frontend-design, hookify-rules, github-ops,
knowledge-ops, lead-intelligence, oura-health, pmx-guidelines, remotion

Enhanced skills (8): article-writing, content-engine, market-research,
investor-materials, investor-outreach, x-api, security-scan,
autonomous-loops — merged with personal skill content

New hook: security-reminder.py (pattern-based OWASP vulnerability
warnings on file edits)

Totals: 36 agents, 69 commands, 128 skills, 29 hook scripts

commands/feature-dev.md

@@ -0,0 +1,45 @@
+---
+description: Guided feature development with codebase understanding and architecture focus
+---
+
+A structured 7-phase feature development workflow that emphasizes understanding existing code before writing new code.
+
+## Phases
+
+### Phase 1: Discovery
+- Read the user's feature request carefully
+- Identify key requirements, constraints, and acceptance criteria
+- Ask clarifying questions if the request is ambiguous
+
+### Phase 2: Codebase Exploration
+- Use the **code-explorer** agent to deeply analyze relevant existing code
+- Trace execution paths and map architecture layers
+- Understand existing patterns, abstractions, and conventions
+- Document dependencies and integration points
+
+### Phase 3: Clarifying Questions
+- Present findings from exploration to the user
+- Ask targeted questions about design decisions, edge cases, and preferences
+- **Wait for user response before proceeding**
+
+### Phase 4: Architecture Design
+- Use the **code-architect** agent to design the feature architecture
+- Provide implementation blueprint: files to create/modify, component designs, data flows
+- Present the plan to the user for approval
+- **Wait for user approval before implementing**
+
+### Phase 5: Implementation
+- Implement the feature following the approved architecture
+- Use TDD approach: write tests first, then implementation
+- Follow existing codebase patterns and conventions
+- Make small, focused commits
+
+### Phase 6: Quality Review
+- Use the **code-reviewer** agent to review the implementation
+- Address Critical and Important issues
+- Verify test coverage meets requirements
+
+### Phase 7: Summary
+- Summarize what was built and how it integrates
+- List any follow-up items or known limitations
+- Provide testing instructions