🤖 fix: include workspace titles in quick switch keywords (#1144)

Workspace quick switch (Ctrl+Shift+P) now searches against workspace
titles in addition to names, project names, and paths.

This makes it easier to find workspaces when you remember what you were
working on (the title) but not the branch name.

---
_Generated with `mux` • Model: `anthropic:claude-opus-4-5` • Thinking:
`medium`_

Author: ammar-agent

src/browser/utils/commands/sources.ts

@@ -117,7 +117,9 @@ export function buildCoreSources(p: BuildSourcesParams): Array<() => CommandActi
         title: `${isCurrent ? "• " : ""}Switch to ${meta.name}`,
         subtitle: `${meta.projectName}${isStreaming ? " • streaming" : ""}`,
         section: section.workspaces,
-        keywords: [meta.name, meta.projectName, meta.namedWorkspacePath],
+        keywords: [meta.name, meta.projectName, meta.namedWorkspacePath, meta.title].filter(
+          (k): k is string => !!k
+        ),
         run: () =>
           p.onSelectWorkspace({
             projectPath: meta.projectPath,
@@ -200,7 +202,13 @@ export function buildCoreSources(p: BuildSourcesParams): Array<() => CommandActi
                   return {
                     id: meta.id,
                     label,
-                    keywords: [meta.name, meta.projectName, meta.namedWorkspacePath, meta.id],
+                    keywords: [
+                      meta.name,
+                      meta.projectName,
+                      meta.namedWorkspacePath,
+                      meta.id,
+                      meta.title,
+                    ].filter((k): k is string => !!k),
                   };
                 }),
             },
@@ -230,7 +238,13 @@ export function buildCoreSources(p: BuildSourcesParams): Array<() => CommandActi
                   return {
                     id: meta.id,
                     label,
-                    keywords: [meta.name, meta.projectName, meta.namedWorkspacePath, meta.id],
+                    keywords: [
+                      meta.name,
+                      meta.projectName,
+                      meta.namedWorkspacePath,
+                      meta.id,
+                      meta.title,
+                    ].filter((k): k is string => !!k),
                   };
                 }),
             },
@@ -272,7 +286,13 @@ export function buildCoreSources(p: BuildSourcesParams): Array<() => CommandActi
                   return {
                     id: meta.id,
                     label,
-                    keywords: [meta.name, meta.projectName, meta.namedWorkspacePath, meta.id],
+                    keywords: [
+                      meta.name,
+                      meta.projectName,
+                      meta.namedWorkspacePath,
+                      meta.id,
+                      meta.title,
+                    ].filter((k): k is string => !!k),
                   };
                 }),
             },