fix(desktop): "load more" button behavior in desktop sidebar (#8430)

packages/opencode/src/server/server.ts

@@ -724,6 +724,8 @@ export namespace Server {
           validator(
             "query",
             z.object({
+              directory: z.string().optional().meta({ description: "Filter sessions by project directory" }),
+              roots: z.coerce.boolean().optional().meta({ description: "Only return root sessions (no parentID)" }),
               start: z.coerce
                 .number()
                 .optional()
@@ -737,6 +739,8 @@ export namespace Server {
             const term = query.search?.toLowerCase()
             const sessions: Session.Info[] = []
             for await (const session of Session.list()) {
+              if (query.directory !== undefined && session.directory !== query.directory) continue
+              if (query.roots && session.parentID) continue
               if (query.start !== undefined && session.time.updated < query.start) continue
               if (term !== undefined && !session.title.toLowerCase().includes(term)) continue
               sessions.push(session)

packages/opencode/test/server/session-list.test.ts

@@ -0,0 +1,39 @@
+import { describe, expect, test } from "bun:test"
+import path from "path"
+import { Instance } from "../../src/project/instance"
+import { Server } from "../../src/server/server"
+import { Session } from "../../src/session"
+import { Log } from "../../src/util/log"
+
+const projectRoot = path.join(__dirname, "../..")
+Log.init({ print: false })
+
+describe("session.list", () => {
+  test("filters by directory", async () => {
+    await Instance.provide({
+      directory: projectRoot,
+      fn: async () => {
+        const app = Server.App()
+
+        const first = await Session.create({})
+
+        const otherDir = path.join(projectRoot, "..", "__session_list_other")
+        const second = await Instance.provide({
+          directory: otherDir,
+          fn: async () => Session.create({}),
+        })
+
+        const response = await app.request(`/session?directory=${encodeURIComponent(projectRoot)}`)
+        expect(response.status).toBe(200)
+
+        const body = (await response.json()) as unknown[]
+        const ids = body
+          .map((s) => (typeof s === "object" && s && "id" in s ? (s as { id: string }).id : undefined))
+          .filter((x): x is string => typeof x === "string")
+
+        expect(ids).toContain(first.id)
+        expect(ids).not.toContain(second.id)
+      },
+    })
+  })
+})