Remove debug "Debug Test" quick-action button from mobile home screen

Co-authored-by: Orca <help@stably.ai>

mobile/app/index.tsx

@@ -525,38 +525,6 @@ export default function HomeScreen() {
                   </View>
                   <Text style={styles.quickActionLabel}>New Worktree</Text>
                 </Pressable>
-                <Pressable
-                  style={({ pressed }) => [
-                    styles.quickAction,
-                    pressed && styles.hostCardPressed,
-                    { borderColor: '#f97316', borderWidth: 1 }
-                  ]}
-                  onPress={async () => {
-                    const connectedHost = sortedHosts.find((h) => hostStates[h.id] === 'connected')
-                    if (!connectedHost) return
-                    const entry = clientsRef.current.find((e) => e.hostId === connectedHost.id)
-                    if (!entry) return
-                    try {
-                      const resp = await entry.client.sendRequest('worktree.create', {
-                        repo: 'name:orca',
-                        name: `dbg${Date.now() % 10000}`,
-                        setupDecision: 'inherit'
-                      })
-                      if (resp.ok) {
-                        const wt = (resp as { result: { worktree: { id: string } } }).result
-                          .worktree
-                        router.push(
-                          `/h/${connectedHost.id}/session/${encodeURIComponent(wt.id)}?name=debug&created=1`
-                        )
-                      }
-                    } catch {}
-                  }}
-                >
-                  <View style={styles.quickActionIcon}>
-                    <Terminal size={20} color="#f97316" />
-                  </View>
-                  <Text style={[styles.quickActionLabel, { color: '#f97316' }]}>Debug Test</Text>
-                </Pressable>
               </View>
             </View>
           }