feat(adapters): add Gemini CLI local adapter support

Signed-off-by: Aditya Sasidhar <telikicherlaadityasasidhar@gmail.com>

server/src/__tests__/adapter-session-codecs.test.ts

@@ -5,6 +5,10 @@ import {
   sessionCodec as cursorSessionCodec,
   isCursorUnknownSessionError,
 } from "@paperclipai/adapter-cursor-local/server";
+import {
+  sessionCodec as geminiSessionCodec,
+  isGeminiUnknownSessionError,
+} from "@paperclipai/adapter-gemini-local/server";
 import {
   sessionCodec as opencodeSessionCodec,
   isOpenCodeUnknownSessionError,
@@ -82,6 +86,24 @@ describe("adapter session codecs", () => {
     });
     expect(cursorSessionCodec.getDisplayId?.(serialized ?? null)).toBe("cursor-session-1");
   });
+
+  it("normalizes gemini session params with cwd", () => {
+    const parsed = geminiSessionCodec.deserialize({
+      session_id: "gemini-session-1",
+      cwd: "/tmp/gemini",
+    });
+    expect(parsed).toEqual({
+      sessionId: "gemini-session-1",
+      cwd: "/tmp/gemini",
+    });
+
+    const serialized = geminiSessionCodec.serialize(parsed);
+    expect(serialized).toEqual({
+      sessionId: "gemini-session-1",
+      cwd: "/tmp/gemini",
+    });
+    expect(geminiSessionCodec.getDisplayId?.(serialized ?? null)).toBe("gemini-session-1");
+  });
 });
 
 describe("codex resume recovery detection", () => {
@@ -146,3 +168,26 @@ describe("cursor resume recovery detection", () => {
     ).toBe(false);
   });
 });
+
+describe("gemini resume recovery detection", () => {
+  it("detects unknown session errors from gemini output", () => {
+    expect(
+      isGeminiUnknownSessionError(
+        "",
+        "unknown session id abc",
+      ),
+    ).toBe(true);
+    expect(
+      isGeminiUnknownSessionError(
+        "",
+        "checkpoint latest not found",
+      ),
+    ).toBe(true);
+    expect(
+      isGeminiUnknownSessionError(
+        "{\"type\":\"result\",\"subtype\":\"success\"}",
+        "",
+      ),
+    ).toBe(false);
+  });
+});