feat: Add unified agent integration with Prometheus, Every Code, and Dexto

This commit adds comprehensive integration of three major AI agent platforms:

## MCP Servers (3)
- Prometheus MCP: Knowledge graph code reasoning with AST analysis
- Every Code MCP: Fast terminal-based coding agent with Auto Drive
- Dexto MCP: Agent harness with orchestration and session management

## Claude Code Skills (6)
- /agent-plan: Generate implementation plans
- /agent-fix-bug: Fix bugs end-to-end
- /agent-solve: Solve complex problems
- /agent-review: Review code quality
- /agent-context: Get code context
- /agent-orchestrate: Orchestrate workflows

## Ralph Auto-Integration
- Pattern-based auto-trigger for all three platforms
- Intelligent backend selection
- Multi-platform coordination
- Configuration in ralph/ralph.yml

## Documentation
- Complete integration guides
- Ralph auto-integration documentation
- Setup scripts
- Usage examples

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

skills/agents/fix-bug.md

@@ -0,0 +1,95 @@
+# Agent: Fix Bug
+
+End-to-end bug fixing with reproduction, patch generation, and verification.
+
+## Usage
+
+```
+/agent-fix-bug "Login fails after password reset"
+```
+
+## Description
+
+The `/agent-fix-bug` skill fixes bugs through a systematic process:
+1. Classify the issue type (bug/feature/question/doc)
+2. Reproduce the bug in isolated environment
+3. Retrieve relevant code context via knowledge graph
+4. Generate and apply patch
+5. Verify fix with regression tests
+
+## Examples
+
+### Fix a reported bug
+```
+/agent-fix-bug "Users with special characters in names cannot sign up"
+```
+
+### Fix with specific error
+```
+/agent-fix-bug "NullPointerException in UserService.updateProfile
+Error: java.lang.NullPointerException: Cannot invoke \"String.length()\" because the return value of \"User.getName()\" is null"
+```
+
+### Fix with reproduction steps
+```
+/agent-fix-bug "Shopping cart loses items when user switches tabs
+Steps:
+1. Add item to cart
+2. Open new tab
+3. Cart appears empty
+4. Return to original tab
+5. Cart still shows items"
+```
+
+## Backends
+
+- **Primary**: Prometheus (bug pipeline with LangGraph agents)
+- **Verification**: Every Code Auto Review
+- **Testing**: Prometheus (Docker container execution)
+
+## Workflow
+
+### 1. Issue Classification
+- Analyze issue description
+- Classify as bug/feature/question/documentation
+- Identify affected components
+
+### 2. Bug Reproduction
+- Create minimal reproduction case
+- Execute in Docker container
+- Capture error logs and stack traces
+
+### 3. Context Retrieval
+- Search knowledge graph for related code
+- Analyze AST for function call chains
+- Identify similar bug fixes
+
+### 4. Patch Generation
+- Generate fix using AI reasoning
+- Apply patch with git
+- Test in isolated environment
+
+### 5. Verification
+- Run regression tests
+- Verify reproduction case is fixed
+- Generate test coverage report
+
+## Output
+
+```
+✓ Issue classified as: bug
+✓ Bug reproduced: UserService.updateProfile throws NPE for null names
+✓ Context retrieved: 5 related files, 12 similar issues
+✓ Patch generated: Added null check in UserService.updateProfile
+✓ Tests passed: 15/15
+✓ Regression verified: No existing tests broken
+
+Fix applied: prometheus-backend/src/main/java/com/prometheus/service/UserService.java:47
+```
+
+## Follow-up
+
+After fixing:
+- `/agent-review` - Review the changes
+- `/agent-test` - Run specific tests
+- `/agent-context` - Understand the fix context