Plugins: fix env-aware root resolution and caching (#44046)

Merged via squash.

Prepared head SHA: 6e8852a188
Co-authored-by: gumadeiras <5599352+gumadeiras@users.noreply.github.com>
Co-authored-by: gumadeiras <5599352+gumadeiras@users.noreply.github.com>
Reviewed-by: @gumadeiras

src/plugins/update.test.ts

@@ -245,4 +245,79 @@ describe("syncPluginsForUpdateChannel", () => {
     });
     expect(installPluginFromNpmSpecMock).not.toHaveBeenCalled();
   });
+
+  it("forwards an explicit env to bundled plugin source resolution", async () => {
+    resolveBundledPluginSourcesMock.mockReturnValue(new Map());
+    const env = { OPENCLAW_HOME: "/srv/openclaw-home" } as NodeJS.ProcessEnv;
+
+    const { syncPluginsForUpdateChannel } = await import("./update.js");
+    await syncPluginsForUpdateChannel({
+      channel: "beta",
+      config: {},
+      workspaceDir: "/workspace",
+      env,
+    });
+
+    expect(resolveBundledPluginSourcesMock).toHaveBeenCalledWith({
+      workspaceDir: "/workspace",
+      env,
+    });
+  });
+
+  it("uses the provided env when matching bundled load and install paths", async () => {
+    const bundledHome = "/tmp/openclaw-home";
+    resolveBundledPluginSourcesMock.mockReturnValue(
+      new Map([
+        [
+          "feishu",
+          {
+            pluginId: "feishu",
+            localPath: `${bundledHome}/plugins/feishu`,
+            npmSpec: "@openclaw/feishu",
+          },
+        ],
+      ]),
+    );
+
+    const previousHome = process.env.HOME;
+    process.env.HOME = "/tmp/process-home";
+    try {
+      const { syncPluginsForUpdateChannel } = await import("./update.js");
+      const result = await syncPluginsForUpdateChannel({
+        channel: "beta",
+        env: {
+          ...process.env,
+          OPENCLAW_HOME: bundledHome,
+          HOME: "/tmp/ignored-home",
+        },
+        config: {
+          plugins: {
+            load: { paths: ["~/plugins/feishu"] },
+            installs: {
+              feishu: {
+                source: "path",
+                sourcePath: "~/plugins/feishu",
+                installPath: "~/plugins/feishu",
+                spec: "@openclaw/feishu",
+              },
+            },
+          },
+        },
+      });
+
+      expect(result.changed).toBe(false);
+      expect(result.config.plugins?.load?.paths).toEqual(["~/plugins/feishu"]);
+      expect(result.config.plugins?.installs?.feishu).toMatchObject({
+        source: "path",
+        sourcePath: "~/plugins/feishu",
+        installPath: "~/plugins/feishu",
+      });
+    } finally {
+      if (previousHome === undefined) {
+        delete process.env.HOME;
+      } else {
+        process.env.HOME = previousHome;
+      }
+    }
+  });
 });