Fix sidebar project removal

Remove projects through a daemon RPC so the sidebar can delete the project
record after archiving its active workspaces. Reopening a removed directory
recreates the missing project record so local projects keep their derived
basename, and History skips orphaned archived workspace rows.

Fixes #1583.

packages/protocol/src/messages.checkout-pr-schema.test.ts

@@ -340,4 +340,18 @@ describe("checkout PR schemas", () => {
       githubCheckDetails: true,
     });
   });
+
+  test("accepts the project removal server_info feature flag", () => {
+    expect(
+      ServerInfoStatusPayloadSchema.parse({
+        status: "server_info",
+        serverId: "srv_test",
+        features: {
+          projectRemove: true,
+        },
+      }).features,
+    ).toEqual({
+      projectRemove: true,
+    });
+  });
 });

packages/protocol/src/messages.ts

@@ -795,6 +795,12 @@ export const ProjectRenameRequestSchema = z.object({
   requestId: z.string(),
 });
 
+export const ProjectRemoveRequestSchema = z.object({
+  type: z.literal("project.remove.request"),
+  projectId: z.string(),
+  requestId: z.string(),
+});
+
 export const WorkspaceTitleSetRequestSchema = z.object({
   type: z.literal("workspace.title.set.request"),
   workspaceId: z.string(),
@@ -1340,6 +1346,19 @@ export const ProjectRenameResponseSchema = z.object({
   payload: ProjectRenameResponsePayloadSchema,
 });
 
+export const ProjectRemoveResponsePayloadSchema = z.object({
+  requestId: z.string(),
+  projectId: z.string(),
+  accepted: z.boolean(),
+  removedWorkspaceIds: z.array(z.string()).default([]),
+  error: z.string().nullable(),
+});
+
+export const ProjectRemoveResponseSchema = z.object({
+  type: z.literal("project.remove.response"),
+  payload: ProjectRemoveResponsePayloadSchema,
+});
+
 export const WorkspaceTitleSetResponsePayloadSchema = z.object({
   requestId: z.string(),
   workspaceId: z.string(),
@@ -1968,6 +1987,7 @@ export const SessionInboundMessageSchema = z.discriminatedUnion("type", [
   CloseItemsRequestMessageSchema,
   UpdateAgentRequestMessageSchema,
   ProjectRenameRequestSchema,
+  ProjectRemoveRequestSchema,
   WorkspaceTitleSetRequestSchema,
   SetVoiceModeMessageSchema,
   SendAgentMessageRequestSchema,
@@ -2256,6 +2276,8 @@ export const ServerInfoStatusPayloadSchema = z
         checkoutRefresh: z.boolean().optional(),
         // COMPAT(workspaceMultiplicity): added in v0.1.97, drop the gate when floor >= v0.1.97
         workspaceMultiplicity: z.boolean().optional(),
+        // COMPAT(projectRemove): added in v0.1.97, drop the gate when floor >= v0.1.97.
+        projectRemove: z.boolean().optional(),
         // COMPAT(worktreeRestore): added in v0.1.98, drop the gate when floor >= v0.1.98
         worktreeRestore: z.boolean().optional(),
       })
@@ -2692,6 +2714,9 @@ export const WorkspaceUpdateMessageSchema = z.object({
       // daemons omit it; old clients ignore it and surface the empty project on
       // their next workspace fetch instead.
       emptyProject: WorkspaceProjectDescriptorPayloadSchema.optional(),
+      // Project removal is represented on the existing workspace update channel
+      // so old clients can still parse the message and ignore the extra field.
+      removedProjectId: z.string().optional(),
     }),
   ]),
 });
@@ -3997,6 +4022,7 @@ export const SessionOutboundMessageSchema = z.discriminatedUnion("type", [
   AgentRewindResponseMessageSchema,
   UpdateAgentResponseMessageSchema,
   ProjectRenameResponseSchema,
+  ProjectRemoveResponseSchema,
   WorkspaceTitleSetResponseSchema,
   WaitForFinishResponseMessageSchema,
   AgentPermissionRequestMessageSchema,
@@ -4143,6 +4169,7 @@ export type SetAgentFeatureResponseMessage = z.infer<typeof SetAgentFeatureRespo
 export type AgentRewindResponseMessage = z.infer<typeof AgentRewindResponseMessageSchema>;
 export type UpdateAgentResponseMessage = z.infer<typeof UpdateAgentResponseMessageSchema>;
 export type ProjectRenameResponse = z.infer<typeof ProjectRenameResponseSchema>;
+export type ProjectRemoveResponse = z.infer<typeof ProjectRemoveResponseSchema>;
 export type WorkspaceTitleSetResponse = z.infer<typeof WorkspaceTitleSetResponseSchema>;
 export type WorkspaceTitleSetResponsePayload = z.infer<
   typeof WorkspaceTitleSetResponsePayloadSchema
@@ -4150,6 +4177,7 @@ export type WorkspaceTitleSetResponsePayload = z.infer<
 export type WorkspaceCreateRequest = z.infer<typeof WorkspaceCreateRequestSchema>;
 export type WorkspaceCreateResponse = z.infer<typeof WorkspaceCreateResponseSchema>;
 export type ProjectRenameResponsePayload = z.infer<typeof ProjectRenameResponsePayloadSchema>;
+export type ProjectRemoveResponsePayload = z.infer<typeof ProjectRemoveResponsePayloadSchema>;
 export type WaitForFinishResponseMessage = z.infer<typeof WaitForFinishResponseMessageSchema>;
 export type AgentPermissionRequestMessage = z.infer<typeof AgentPermissionRequestMessageSchema>;
 export type AgentPermissionResolvedMessage = z.infer<typeof AgentPermissionResolvedMessageSchema>;
@@ -4265,6 +4293,7 @@ export type ResumeAgentRequestMessage = z.infer<typeof ResumeAgentRequestMessage
 export type DeleteAgentRequestMessage = z.infer<typeof DeleteAgentRequestMessageSchema>;
 export type UpdateAgentRequestMessage = z.infer<typeof UpdateAgentRequestMessageSchema>;
 export type ProjectRenameRequest = z.infer<typeof ProjectRenameRequestSchema>;
+export type ProjectRemoveRequest = z.infer<typeof ProjectRemoveRequestSchema>;
 export type WorkspaceTitleSetRequest = z.infer<typeof WorkspaceTitleSetRequestSchema>;
 export type SetAgentModeRequestMessage = z.infer<typeof SetAgentModeRequestMessageSchema>;
 export type SetAgentModelRequestMessage = z.infer<typeof SetAgentModelRequestMessageSchema>;