Add logs tab with real-time server output and consolidate syntax highlighting

- Implement dedicated Logs tab showing stdout/stderr from OpenCode server
- Add log level parsing (INFO, ERROR, WARN, DEBUG) with color coding
- Stream logs from main process to renderer via IPC events
- Persist scroll position and auto-scroll state per instance
- Synchronize instance IDs between renderer and main process
- Consolidate syntax highlighting to single shared highlighter instance
- Optimize markdown rendering with global highlighter initialization
- Fix code block copy button to always appear on right side
- Enable debug logging with --print-logs --log-level DEBUG flags

electron/preload/index.ts

@@ -2,20 +2,23 @@ import { contextBridge, ipcRenderer } from "electron"
 
 export interface ElectronAPI {
   selectFolder: () => Promise<string | null>
-  createInstance: (folder: string) => Promise<{ port: number; pid: number }>
+  createInstance: (id: string, folder: string) => Promise<{ id: string; port: number; pid: number }>
   stopInstance: (pid: number) => Promise<void>
   onInstanceStarted: (callback: (data: { id: string; port: number; pid: number }) => void) => void
   onInstanceError: (callback: (data: { id: string; error: string }) => void) => void
   onInstanceStopped: (callback: (data: { id: string }) => void) => void
   onInstanceLog: (
-    callback: (data: { id: string; entry: { timestamp: number; level: string; message: string } }) => void,
+    callback: (data: {
+      id: string
+      entry: { timestamp: number; level: "info" | "error" | "warn" | "debug"; message: string }
+    }) => void,
   ) => void
   onNewInstance: (callback: () => void) => void
 }
 
 const electronAPI: ElectronAPI = {
   selectFolder: () => ipcRenderer.invoke("dialog:selectFolder"),
-  createInstance: (folder: string) => ipcRenderer.invoke("instance:create", folder),
+  createInstance: (id: string, folder: string) => ipcRenderer.invoke("instance:create", id, folder),
   stopInstance: (pid: number) => ipcRenderer.invoke("instance:stop", pid),
   onInstanceStarted: (callback) => {
     ipcRenderer.on("instance:started", (_, data) => callback(data))