Daemon: a changed default model overrides the saved state (0.6.3)

In managed mode the extension switches models by rewriting the daemon config's
defaultModel and restarting it, but loadState() preferred the persisted model, so the
daemon came back on the old one every time. State now records the default it was saved
under; a different default wins.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01J39imRDT8L7xYbWzsVWd8A

daemon/src/config.ts

@@ -76,6 +76,8 @@ export interface RuntimeState {
   enabled: boolean
   model: string
   mode: ContextMode
+  /** config.defaultModel when this state was saved: a changed default (editor model setting, new release) wins. */
+  defaultModel?: string
 }
 
 export function loadConfig(configPath: string): DaemonConfig {
@@ -97,12 +99,13 @@ export function loadConfig(configPath: string): DaemonConfig {
 }
 
 export function loadState(config: DaemonConfig): RuntimeState {
-  const fallback: RuntimeState = { enabled: true, model: config.defaultModel, mode: config.models[config.defaultModel].defaultMode }
+  const fallback: RuntimeState = { enabled: true, model: config.defaultModel, mode: config.models[config.defaultModel].defaultMode, defaultModel: config.defaultModel }
   try {
     const s = JSON.parse(fs.readFileSync(config.stateFile, 'utf8')) as Partial<RuntimeState>
-    const model = s.model && config.models[s.model] ? s.model : fallback.model
+    const keepModel = s.defaultModel === config.defaultModel && s.model && config.models[s.model]
+    const model = keepModel ? s.model! : fallback.model
     const mode = s.mode && config.models[model].modes.includes(s.mode) ? s.mode : config.models[model].defaultMode
-    return { enabled: s.enabled ?? true, model, mode }
+    return { enabled: s.enabled ?? true, model, mode, defaultModel: config.defaultModel }
   } catch {
     return fallback
   }