feat(core): Land ContextCompressionService (#24483)

packages/cli/src/ui/AppContainer.tsx

@@ -1034,7 +1034,7 @@ Logging in with Google... Restarting Gemini CLI to continue.
       let fileCount: number;
 
       if (config.isJitContextEnabled()) {
-        await config.getContextManager()?.refresh();
+        await config.getMemoryContextManager()?.refresh();
         config.updateSystemInstructionIfInitialized();
         flattenedMemory = flattenMemory(config.getUserMemory());
         fileCount = config.getGeminiMdFileCount();

packages/cli/src/ui/commands/rewindCommand.test.tsx

@@ -106,7 +106,7 @@ describe('rewindCommand', () => {
           },
           config: {
             getSessionId: () => 'test-session-id',
-            getContextManager: () => ({ refresh: mockResetContext }),
+            getMemoryContextManager: () => ({ refresh: mockResetContext }),
             getProjectRoot: mockGetProjectRoot,
           },
         },

packages/cli/src/ui/commands/rewindCommand.tsx

@@ -61,7 +61,9 @@ async function rewindConversation(
     client.setHistory(clientHistory as Content[]);
 
     // Reset context manager as we are rewinding history
-    await context.services.agentContext?.config.getContextManager()?.refresh();
+    await context.services.agentContext?.config
+      .getMemoryContextManager()
+      ?.refresh();
 
     // Update UI History
     // We generate IDs based on index for the rewind history