feat: Improve dashboard performance and Claude terminal context

- Add trial limiting (300 max) and reduce polling to 15s for large studies
- Make dashboard layout wider with col-span adjustments
- Claude terminal now runs from Atomizer root for CLAUDE.md/skills access
- Add study context display in terminal on connect
- Add KaTeX math rendering styles for study reports
- Add surrogate tuner module for hyperparameter optimization
- Fix backend proxy to port 8001

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

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

atomizer-dashboard/backend/api/routes/optimization.py

@@ -73,7 +73,8 @@ async def list_studies():
             # Protocol 10: Read from Optuna SQLite database
             if study_db.exists():
                 try:
-                    conn = sqlite3.connect(str(study_db))
+                    # Use timeout to avoid blocking on locked databases
+                    conn = sqlite3.connect(str(study_db), timeout=2.0)
                     cursor = conn.cursor()
 
                     # Get trial count and status
@@ -130,6 +131,29 @@ async def list_studies():
                 config.get('trials', {}).get('n_trials', 50)
             )
 
+            # Get creation date from directory or config modification time
+            created_at = None
+            try:
+                # First try to get from database (most accurate)
+                if study_db.exists():
+                    created_at = datetime.fromtimestamp(study_db.stat().st_mtime).isoformat()
+                elif config_file.exists():
+                    created_at = datetime.fromtimestamp(config_file.stat().st_mtime).isoformat()
+                else:
+                    created_at = datetime.fromtimestamp(study_dir.stat().st_ctime).isoformat()
+            except:
+                created_at = None
+
+            # Get last modified time
+            last_modified = None
+            try:
+                if study_db.exists():
+                    last_modified = datetime.fromtimestamp(study_db.stat().st_mtime).isoformat()
+                elif history_file.exists():
+                    last_modified = datetime.fromtimestamp(history_file.stat().st_mtime).isoformat()
+            except:
+                last_modified = None
+
             studies.append({
                 "id": study_dir.name,
                 "name": study_dir.name.replace("_", " ").title(),
@@ -140,7 +164,9 @@ async def list_studies():
                 },
                 "best_value": best_value,
                 "target": config.get('target', {}).get('value'),
-                "path": str(study_dir)
+                "path": str(study_dir),
+                "created_at": created_at,
+                "last_modified": last_modified
             })
 
         return {"studies": studies}