feat: Enhanced logging and SDK prompt improvements (#94)

* Initial plan

* Initial analysis: Found root cause of double entries bug

Co-authored-by: thedotmack <683968+thedotmack@users.noreply.github.com>

* Fix double entries by assigning generatorPromise in handleSessionInit

Co-authored-by: thedotmack <683968+thedotmack@users.noreply.github.com>

* feat(logging): Enhance HTTP request logging and session management

- Added middleware for logging HTTP requests and responses, excluding static assets and health checks.
- Introduced a method to summarize request bodies for specific endpoints.
- Improved logging for user prompt synchronization with Chroma, including duration tracking.
- Enhanced session initialization logging to include additional session details.
- Updated observation and summary logging to provide more context and error handling during Chroma synchronization.
- Refactored tool name formatting for logging in the SessionManager.
- Expanded logger component types to include 'HTTP', 'SESSION', and 'CHROMA'.

* Refactor SDK prompts and logging for improved clarity and functionality

- Updated buildInitPrompt to clarify the observer's role and what to record.
- Enhanced buildSummaryPrompt with clearer instructions for summarizing ongoing sessions.
- Improved buildContinuationPrompt to emphasize the focus on deliverables and capabilities.
- Refactored WorkerService to utilize a centralized tool formatting function for logging.
- Added truncation for logged responses and observations to improve readability.
- Updated SessionManager to log the queuing of summarize actions with session details.
- Enhanced App and Sidebar components to support refreshing stats on sidebar open.
- Refactored useStats hook to allow manual refreshing of stats while maintaining automatic loading on mount.

---------

Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
Co-authored-by: thedotmack <683968+thedotmack@users.noreply.github.com>

src/services/worker/SessionManager.ts

@@ -55,7 +55,13 @@ export class SessionManager {
     const emitter = new EventEmitter();
     this.sessionQueues.set(sessionDbId, emitter);
 
-    logger.info('WORKER', 'Session initialized', { sessionDbId, project: session.project });
+    logger.info('SESSION', 'Session initialized', {
+      sessionId: sessionDbId,
+      project: session.project,
+      claudeSessionId: session.claudeSessionId,
+      queueDepth: 0,
+      hasGenerator: false
+    });
 
     return session;
   }
@@ -78,6 +84,8 @@ export class SessionManager {
       session = this.initializeSession(sessionDbId);
     }
 
+    const beforeDepth = session.pendingMessages.length;
+
     session.pendingMessages.push({
       type: 'observation',
       tool_name: data.tool_name,
@@ -87,13 +95,19 @@ export class SessionManager {
       cwd: data.cwd
     });
 
+    const afterDepth = session.pendingMessages.length;
+
     // Notify generator immediately (zero latency)
     const emitter = this.sessionQueues.get(sessionDbId);
     emitter?.emit('message');
 
-    logger.debug('WORKER', 'Observation queued', {
-      sessionDbId,
-      queueLength: session.pendingMessages.length
+    // Format tool name for logging
+    const toolSummary = logger.formatTool(data.tool_name, data.tool_input);
+
+    logger.info('SESSION', `Observation queued (${beforeDepth}→${afterDepth})`, {
+      sessionId: sessionDbId,
+      tool: toolSummary,
+      hasGenerator: !!session.generatorPromise
     });
   }
 
@@ -108,12 +122,19 @@ export class SessionManager {
       session = this.initializeSession(sessionDbId);
     }
 
+    const beforeDepth = session.pendingMessages.length;
+
     session.pendingMessages.push({ type: 'summarize' });
 
+    const afterDepth = session.pendingMessages.length;
+
     const emitter = this.sessionQueues.get(sessionDbId);
     emitter?.emit('message');
 
-    logger.debug('WORKER', 'Summarize queued', { sessionDbId });
+    logger.info('SESSION', `Summarize queued (${beforeDepth}→${afterDepth})`, {
+      sessionId: sessionDbId,
+      hasGenerator: !!session.generatorPromise
+    });
   }
 
   /**
@@ -125,6 +146,8 @@ export class SessionManager {
       return; // Already deleted
     }
 
+    const sessionDuration = Date.now() - session.startTime;
+
     // Abort the SDK agent
     session.abortController.abort();
 
@@ -137,7 +160,11 @@ export class SessionManager {
     this.sessions.delete(sessionDbId);
     this.sessionQueues.delete(sessionDbId);
 
-    logger.info('WORKER', 'Session deleted', { sessionDbId });
+    logger.info('SESSION', 'Session deleted', {
+      sessionId: sessionDbId,
+      duration: `${(sessionDuration / 1000).toFixed(1)}s`,
+      project: session.project
+    });
   }
 
   /**