merge: integrate main into dev

Resolve 9 merge conflicts preserving both sides' intent:
- nix hash, bootstrap hostnames rename, websocket-server wiring
- session.ts handler dedup, snapshot fallback, worktree registration
- worktree-session git service + script/setup features
- sidebar-workspace-list setup navigation, session-context cleanup
- workspace-registry-bootstrap test kept (code still exists)
- checkout-git test additions from both sides

Post-merge fixes: isPaneFocused prop rename, server type rebuild.

packages/app/src/hooks/use-agent-attention-clear.ts

@@ -59,7 +59,7 @@ export function useAgentAttentionClear({
         return;
       }
       deferredFocusEntryClearRef.current = false;
-      client.clearAgentAttention(resolvedAgentId);
+      client.clearAgentAttention(resolvedAgentId).catch(() => {});
     },
     [agentId, attentionReason, client, isConnected, requiresAttention],
   );

packages/app/src/hooks/use-sidebar-workspaces-list.ts

@@ -9,10 +9,6 @@ import {
 import { getHostRuntimeStore } from "@/runtime/host-runtime";
 import { useSidebarOrderStore } from "@/stores/sidebar-order-store";
 import { projectDisplayNameFromProjectId } from "@/utils/project-display-name";
-import {
-  summarizeSidebarProjects,
-  summarizeWorkspaceCollection,
-} from "@/utils/workspace-fetch-debug";
 
 const EMPTY_ORDER: string[] = [];
 const EMPTY_PROJECTS: SidebarProjectEntry[] = [];
@@ -302,14 +298,6 @@ export function useSidebarWorkspacesList(options?: {
     if (!serverId) {
       return;
     }
-
-    console.log("[WorkspaceFetch][sidebar] model", {
-      serverId,
-      connectionStatus,
-      hasHydratedWorkspaces,
-      sessionWorkspaces: summarizeWorkspaceCollection(sessionWorkspaces?.values()),
-      projects: summarizeSidebarProjects(projects),
-    });
   }, [connectionStatus, hasHydratedWorkspaces, projects, serverId, sessionWorkspaces]);
 
   useEffect(() => {
@@ -355,21 +343,10 @@ export function useSidebarWorkspacesList(options?: {
       let cursor: string | null = null;
       try {
         while (true) {
-          console.log("[WorkspaceFetch][sidebar-refresh] request", {
-            serverId,
-            cursor,
-            existingWorkspaces: summarizeWorkspaceCollection(existingWorkspaces?.values()),
-          });
           const payload = await client.fetchWorkspaces({
             sort: [{ key: "activity_at", direction: "desc" }],
             page: cursor ? { limit: 200, cursor } : { limit: 200 },
           });
-          console.log("[WorkspaceFetch][sidebar-refresh] response", {
-            serverId,
-            cursor,
-            pageInfo: payload.pageInfo,
-            payload: summarizeWorkspaceCollection(payload.entries),
-          });
           for (const entry of payload.entries) {
             const workspace = toWorkspaceDescriptor(entry);
             next.set(
@@ -388,10 +365,6 @@ export function useSidebarWorkspacesList(options?: {
         const store = useSessionStore.getState();
         store.setWorkspaces(serverId, next);
         store.setHasHydratedWorkspaces(serverId, true);
-        console.log("[WorkspaceFetch][sidebar-refresh] applied", {
-          serverId,
-          nextWorkspaces: summarizeWorkspaceCollection(next.values()),
-        });
       } catch (error) {
         console.error("[WorkspaceFetch][sidebar-refresh] failed", {
           serverId,