chore: remove dead code, unused dependencies, and stale files

Web:
- Remove unused npm deps: date-fns, @supabase/ssr, pg
- Remove 5 dead TypeScript interfaces from supabase.ts
- Remove ~50 lines unused CSS (.glass, .pulse-glow, .interactive, etc.)
- Remove empty google-site-verification meta tag

Desktop:
- Remove dead get_recommendations() method from api_client.py
- Remove unused import math from gui.py
- Remove unused pythonping from requirements.txt
- Collapse redundant format_ping() branch in cli.py

Root:
- Delete unused root package.json and package-lock.json
- Delete stale TODO-SIGNPATH.md
- Add supabase/.temp/ to .gitignore

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: bokiko

.gitignore

@@ -41,5 +41,8 @@ coverage/
 .vercel
 .env*.local
 
+# Supabase CLI temp files
+supabase/.temp/
+
 # Local Claude instructions (not for GitHub)
 CLAUDE.md

desktop/requirements.txt

@@ -1,3 +1,2 @@
 requests>=2.31.0
-pythonping>=1.1.4
 pyinstaller>=6.0.0

desktop/src/api_client.py

@@ -323,22 +323,6 @@ def submit_results(self, results: List[Dict], isp_info: Dict,
             logger.error(f"Unexpected error submitting results: {e}")
             return {"success": False, "error": str(e)}
 
-    def get_recommendations(self, isp: str, region: str,
-                           game_slug: str = "overwatch-2") -> Dict:
-        """Get server recommendations based on ISP and region"""
-        try:
-            response = self.session.get(
-                f"{self.base_url}/api/recommendations",
-                params={"isp": isp, "region": region, "game": game_slug},
-                timeout=10
-            )
-            if response.status_code == 200:
-                return response.json()
-        except Exception as e:
-            logger.warning(f"Failed to get recommendations: {e}")
-
-        return {"best_server": None, "avg_ping": None, "players_tested": 0}
-
     @staticmethod
     def get_log_directory() -> Path:
         """Get the log directory path"""

desktop/src/cli.py

@@ -70,9 +70,7 @@ def format_ping(value: float) -> str:
     """Format ping value with color based on threshold."""
     if value == 0:
         return colorize("---", Colors.DIM)
-    if value < 30:
-        return colorize(f"{value:.0f}ms", Colors.GREEN)
-    elif value < 60:
+    if value < 60:
         return colorize(f"{value:.0f}ms", Colors.GREEN)
     elif value < 100:
         return colorize(f"{value:.0f}ms", Colors.YELLOW)

desktop/src/gui.py

@@ -8,7 +8,6 @@
 import threading
 import webbrowser
 import os
-import math
 from typing import List, Optional
 
 from config import COLORS, REGIONS, REGION_NAMES, APP_VERSION, GAMES