Add workspaces, conversation sessions, app-managed computers and pictures

- Rail: Add icon with stacked form modals (bot, workspace, computer),
  coordinator, recent bots with "See all bots", Workspaces section, and
  a workspace mode listing only its crew
- Workspaces: page for context, bots (per-workspace instructions and
  memory), computers (default, link, unlink), models and delete;
  conversations scoped per bot per workspace
- Sessions: conversations split into searchable, reopenable sessions
  with carry-over summaries; sessions and new-session header icons
- Computers: created and provisioned over the docker socket, home dir
  kept at DATA_DIR/computers/<id> after delete; super admins only
- Models: workspace settings win over a bot's own, then the defaults
- Pictures for bots and workspaces; bots editable from the header
- Coordinator tools: update_workspace, set_bot_workspace_instructions

Co-Authored-By: Claude Opus 5.5 <[email protected]>

src/functions/backend/db/workspaces/set-workspace-computer.ts

@@ -0,0 +1,44 @@
+import BunSQLite from "@moduletrace/bun-sqlite";
+import AppError from "@/src/utils/app-error";
+import grabWorkspaceComputers from "./grab-workspace-computers";
+import grabUserWorkspace from "./grab-user-workspace";
+
+type Params = {
+    user_id: number | string;
+    workspace_id: number | string;
+    computer_id: number | string;
+};
+
+/**
+ * Makes one of a workspace's computers its default, where its tasks run.
+ * Returns the workspace's computers, the new default first.
+ */
+export default async function setWorkspaceComputer({
+    user_id,
+    workspace_id,
+    computer_id,
+}: Params) {
+    const workspace = await grabUserWorkspace({ workspace_id, user_id });
+
+    if (!workspace?.id) {
+        throw new AppError(`Workspace not found.`);
+    }
+
+    const linked = await grabWorkspaceComputers({ workspace_id: workspace.id });
+    const computer = linked.find((c) => String(c.id) == String(computer_id));
+
+    if (!computer?.id) {
+        throw new AppError(`That computer isn't in ${workspace.name || "this workspace"}.`);
+    }
+
+    await BunSQLite.sql({
+        sql: `UPDATE workspaces SET computer_id = ?, updated_at = ? WHERE id = ?`,
+        values: [computer.id, Date.now(), workspace.id],
+    });
+
+    return {
+        workspace: { ...workspace, computer_id: computer.id },
+        computer,
+        computers: [computer, ...linked.filter((c) => c.id != computer.id)],
+    };
+}