Fix bridge compression history handling (#726)

* feat(bridge): refactor compression to use DB history and add structured logging

- Extract buildDbHistory() to share message loading between buildCompressedHistory and forceCompressBridgeHistory
- forceCompressBridgeHistory now reads from local DB instead of using Python-provided messages, ensuring consistency with api_server path
- Pass sessionId to compressor for snapshot-aware compression
- Add force_compress flag to bridge chat requests
- Add bridgeLogger structured logging for compression lifecycle
- Simplify schemas, session-sync, and providers

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

* fix bridge compression history handling

---------

Co-authored-by: Claude Opus 4.7 <noreply@anthropic.com>

packages/server/src/services/logger.ts

@@ -10,22 +10,28 @@ const logDir = resolve(homedir(), '.hermes-web-ui', 'logs')
 mkdirSync(logDir, { recursive: true })
 
 const logFile = resolve(logDir, 'server.log')
+const bridgeLogFile = resolve(logDir, 'bridge.log')
 
-function rotateIfNeeded() {
+function rotateFileIfNeeded(file: string) {
   try {
-    const stat = statSync(logFile)
+    const stat = statSync(file)
     if (stat.size > MAX_LOG_SIZE) {
       const keepSize = Math.floor(MAX_LOG_SIZE / 2)
-      const fd = openSync(logFile, 'r')
+      const fd = openSync(file, 'r')
       const buf = Buffer.alloc(keepSize)
       readSync(fd, buf, 0, keepSize, stat.size - keepSize)
       closeSync(fd)
-      truncateSync(logFile, 0)
-      writeFileSync(logFile, buf)
+      truncateSync(file, 0)
+      writeFileSync(file, buf)
     }
   } catch { }
 }
 
+function rotateIfNeeded() {
+  rotateFileIfNeeded(logFile)
+  rotateFileIfNeeded(bridgeLogFile)
+}
+
 // Rotate on startup
 rotateIfNeeded()
 
@@ -38,3 +44,11 @@ export const logger = pino({
   dest: logFile,
   sync: true,
 }))
+
+export const bridgeLogger = pino({
+  level: process.env.BRIDGE_LOG_LEVEL || process.env.LOG_LEVEL || 'info',
+  name: 'bridge',
+}, pino.destination({
+  dest: bridgeLogFile,
+  sync: true,
+}))