Implement core skills: Code validation, model fine-tuning, and system diagnostics

- Added `ModelFineTuner` class for preparing training data and fine-tuning models based on user corrections.
- Introduced `CodeValidator` class to validate generated code against various hardware and style rules, including safety checks and function naming conventions.
- Developed skills for calculator operations, system information retrieval, weather fetching, and timer functionality.
- Implemented a self-diagnostic skill to run unit tests and report results.
- Created a dynamic skill loading mechanism to discover and register skills from the current directory.
- Added unit tests for skills to ensure functionality and reliability.

buddai_shared.py

@@ -1,53 +0,0 @@
-import os
-import sqlite3
-from pathlib import Path
-import queue
-import http.client
-
-# Global Config
-DATA_DIR = Path(__file__).parent / "data"
-DB_PATH = DATA_DIR / "conversations.db"
-OLLAMA_HOST = os.getenv("OLLAMA_HOST", "127.0.0.1")
-OLLAMA_PORT = int(os.getenv("OLLAMA_PORT", "11434"))
-
-# Shared Models
-MODELS = {
-    "fast": "qwen2.5-coder:1.5b",
-    "balanced": "qwen2.5-coder:3b"
-}
-
-# Shared Connection Pool logic to avoid "port in use" or "too many connections" errors
-class OllamaConnectionPool:
-    def __init__(self, host, port, max_size=10):
-        self.host = host
-        self.port = port
-        self.pool = queue.Queue(maxsize=max_size)
-    def get_connection(self):
-        try: return self.pool.get_nowait()
-        except: return http.client.HTTPConnection(self.host, self.port, timeout=90)
-    def return_connection(self, conn):
-        try: self.pool.put_nowait(conn)
-        except: conn.close()
-
-OLLAMA_POOL = OllamaConnectionPool(OLLAMA_HOST, OLLAMA_PORT)
-
-# Server Availability Check
-try:
-    import fastapi
-    import uvicorn
-    SERVER_AVAILABLE = True
-except ImportError:
-    SERVER_AVAILABLE = False
-
-# Shared Patterns
-COMPLEX_TRIGGERS = [
-    "multiple modules", "integrate", "combine", "modular", "state machine", "safety", "failsafe", "logic", "protocol", "integration"
-]
-MODULE_PATTERNS = {
-    "ble": ["ble", "bluetooth", "phone app", "remote"],
-    "servo": ["servo", "flipper", "arm", "mg996", "sg90"],
-    "motor": ["motor", "drive", "l298n", "movement", "wheels"],
-    "safety": ["safety", "timeout", "failsafe", "emergency"],
-    "battery": ["battery", "voltage", "power"],
-    "sensor": ["sensor", "distance", "proximity", "ultrasonic", "ir"]
-}