feat: v3.0.0 architecture overhaul

- Rename marketplace to lm-claude-plugins
- Move MCP servers to root with symlinks
- Add 6 PR tools to Gitea MCP (list_pull_requests, get_pull_request,
  get_pr_diff, get_pr_comments, create_pr_review, add_pr_comment)
- Add clarity-assist plugin (prompt optimization with ND accommodations)
- Add git-flow plugin (workflow automation)
- Add pr-review plugin (multi-agent review with confidence scoring)
- Centralize configuration docs
- Update all documentation for v3.0.0

BREAKING CHANGE: MCP server paths changed, marketplace renamed

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

plugins/pr-review/.claude-plugin/plugin.json

@@ -0,0 +1,71 @@
+{
+  "name": "pr-review",
+  "version": "1.0.0",
+  "description": "Multi-agent pull request review with confidence scoring and actionable feedback",
+  "author": {
+    "name": "Leo Miranda",
+    "email": "leobmiranda@gmail.com"
+  },
+  "homepage": "https://gitea.hotserv.cloud/personal-projects/support-claude-mktplace/src/branch/main/plugins/pr-review/README.md",
+  "repository": "https://gitea.hotserv.cloud/personal-projects/support-claude-mktplace.git",
+  "license": "MIT",
+  "keywords": [
+    "pull-request",
+    "code-review",
+    "security",
+    "performance",
+    "multi-agent"
+  ],
+  "commands": [
+    {
+      "name": "pr-review",
+      "description": "Full multi-agent PR review (security, performance, maintainability, tests)",
+      "file": "commands/pr-review.md"
+    },
+    {
+      "name": "pr-summary",
+      "description": "Quick summary of PR changes without full review",
+      "file": "commands/pr-summary.md"
+    },
+    {
+      "name": "pr-findings",
+      "description": "List and filter review findings by category or confidence",
+      "file": "commands/pr-findings.md"
+    }
+  ],
+  "agents": [
+    {
+      "name": "coordinator",
+      "description": "Orchestrates the multi-agent review process",
+      "file": "agents/coordinator.md"
+    },
+    {
+      "name": "security-reviewer",
+      "description": "Analyzes code for security vulnerabilities",
+      "file": "agents/security-reviewer.md"
+    },
+    {
+      "name": "performance-analyst",
+      "description": "Identifies performance issues and optimization opportunities",
+      "file": "agents/performance-analyst.md"
+    },
+    {
+      "name": "maintainability-auditor",
+      "description": "Reviews code quality, patterns, and maintainability",
+      "file": "agents/maintainability-auditor.md"
+    },
+    {
+      "name": "test-validator",
+      "description": "Validates test coverage and test quality",
+      "file": "agents/test-validator.md"
+    }
+  ],
+  "skills": [
+    {
+      "name": "review-patterns",
+      "description": "Code review patterns and confidence scoring rules",
+      "path": "skills/review-patterns"
+    }
+  ],
+  "mcpServers": ["gitea"]
+}