feat: complete redesign to v2.4.0 - Claude's ultimate development partner

Major redesign of Gemini MCP Server with modular architecture:

- Removed all emoji characters from tool outputs for clean terminal display
- Kept review category emojis (🔴🟠🟡🟢) per user preference
- Added 4 specialized tools:
  - think_deeper: Extended reasoning and problem-solving (temp 0.7)
  - review_code: Professional code review with severity levels (temp 0.2)
  - debug_issue: Root cause analysis and debugging (temp 0.2)
  - analyze: General-purpose file analysis (temp 0.2)
- Modular architecture with base tool class and Pydantic models
- Verbose tool descriptions with natural language triggers
- Updated README with comprehensive examples and real-world use cases
- All 25 tests passing, type checking clean, critical linting clean

BREAKING CHANGE: Removed analyze_code tool in favor of specialized tools

🤖 Generated with [Claude Code](https://claude.ai/code)

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

utils/file_utils.py

@@ -0,0 +1,63 @@
+"""
+File reading utilities
+"""
+
+from pathlib import Path
+from typing import List, Tuple, Optional
+
+
+def read_file_content(file_path: str) -> str:
+    """Read a single file and format it for Gemini"""
+    path = Path(file_path)
+
+    try:
+        # Check if path exists and is a file
+        if not path.exists():
+            return f"\n--- FILE NOT FOUND: {file_path} ---\nError: File does not exist\n--- END FILE ---\n"
+
+        if not path.is_file():
+            return f"\n--- NOT A FILE: {file_path} ---\nError: Path is not a file\n--- END FILE ---\n"
+
+        # Read the file
+        with open(path, "r", encoding="utf-8") as f:
+            content = f.read()
+
+        # Format with clear delimiters for Gemini
+        return f"\n--- BEGIN FILE: {file_path} ---\n{content}\n--- END FILE: {file_path} ---\n"
+
+    except Exception as e:
+        return f"\n--- ERROR READING FILE: {file_path} ---\nError: {str(e)}\n--- END FILE ---\n"
+
+
+def read_files(
+    file_paths: List[str], code: Optional[str] = None
+) -> Tuple[str, str]:
+    """
+    Read multiple files and optional direct code.
+    Returns: (full_content, brief_summary)
+    """
+    content_parts = []
+    summary_parts = []
+
+    # Process files
+    if file_paths:
+        summary_parts.append(f"Reading {len(file_paths)} file(s)")
+        for file_path in file_paths:
+            content = read_file_content(file_path)
+            content_parts.append(content)
+
+    # Add direct code if provided
+    if code:
+        formatted_code = (
+            f"\n--- BEGIN DIRECT CODE ---\n{code}\n--- END DIRECT CODE ---\n"
+        )
+        content_parts.append(formatted_code)
+        code_preview = code[:50] + "..." if len(code) > 50 else code
+        summary_parts.append(f"Direct code: {code_preview}")
+
+    full_content = "\n\n".join(content_parts)
+    summary = (
+        " | ".join(summary_parts) if summary_parts else "No input provided"
+    )
+
+    return full_content, summary