fix(tui): show docs URL in dialog when browser cannot open on headless systems

Resolve merge conflict with main (command structure refactored from
onSelect to run) and add missing changeset.

.changeset/headless-docs-url.md

@@ -0,0 +1,5 @@
+---
+"@kilocode/cli": patch
+---
+
+Show the docs URL in an alert dialog when the browser cannot be opened on headless systems instead of silently failing.

packages/opencode/src/cli/cmd/tui/app.tsx

@@ -685,8 +685,15 @@ function App(props: { onSnapshot?: () => Promise<string[]> }) {
         name: "docs.open",
         title: "Open docs",
         run: () => {
-          open(KiloApp.DOCS_URL).catch(() => {}) // kilocode_change
           dialog.clear()
+          open(KiloApp.DOCS_URL).catch(() => {
+            dialog.replace(() => (
+              <DialogAlert
+                title="Cannot open browser"
+                message={`No display detected.\n\nOpen the docs manually:\n${KiloApp.DOCS_URL}`}
+              />
+            ))
+          }) // kilocode_change
         },
         category: "System",
       },