fix: handle pausing/draining states in UI guards and process cleanup

Follow-up fixes after merging PR #183 (graceful pause/drain mode):

- process_manager: _stream_output finally block now transitions from
  pausing/paused_graceful to crashed/stopped (not just running), and
  cleans up the drain signal file on process exit
- App.tsx: block Reset button and R shortcut during pausing/paused_graceful
- AgentThought/ProgressDashboard: keep thought bubble visible while pausing
- OrchestratorAvatar: add draining/paused cases to animation, glow, and
  description switch statements
- AgentMissionControl: show Draining/Paused badge text for new states
- registry.py: remove redundant type annotation to fix mypy no-redef
- process_manager.py: add type:ignore for SQLAlchemy Column assignment
- websocket.py: reclassify test-pass lines as 'testing' not 'success'
- review-pr.md: add post-review recommended action guidance

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

ui/src/App.tsx

@@ -210,8 +210,8 @@ function App() {
         setShowKeyboardHelp(true)
       }
 
-      // R : Open reset modal (when project selected and agent not running)
-      if ((e.key === 'r' || e.key === 'R') && selectedProject && wsState.agentStatus !== 'running') {
+      // R : Open reset modal (when project selected and agent not running/draining)
+      if ((e.key === 'r' || e.key === 'R') && selectedProject && !['running', 'pausing', 'paused_graceful'].includes(wsState.agentStatus)) {
         e.preventDefault()
         setShowResetModal(true)
       }
@@ -380,7 +380,7 @@ function App() {
                       variant="outline"
                       size="sm"
                       aria-label="Reset Project"
-                      disabled={wsState.agentStatus === 'running'}
+                      disabled={['running', 'pausing', 'paused_graceful'].includes(wsState.agentStatus)}
                     >
                       <RotateCcw size={18} />
                     </Button>

ui/src/components/AgentMissionControl.tsx

@@ -72,9 +72,13 @@ export function AgentMissionControl({
               ? `${agents.length} ${agents.length === 1 ? 'agent' : 'agents'} active`
               : orchestratorStatus?.state === 'initializing'
                 ? 'Initializing'
-                : orchestratorStatus?.state === 'complete'
-                  ? 'Complete'
-                  : 'Orchestrating'
+                : orchestratorStatus?.state === 'draining'
+                  ? 'Draining'
+                  : orchestratorStatus?.state === 'paused'
+                    ? 'Paused'
+                    : orchestratorStatus?.state === 'complete'
+                      ? 'Complete'
+                      : 'Orchestrating'
             }
           </Badge>
         </div>

ui/src/components/AgentThought.tsx

@@ -63,7 +63,7 @@ export function AgentThought({ logs, agentStatus }: AgentThoughtProps) {
   // Determine if component should be visible
   const shouldShow = useMemo(() => {
     if (!thought) return false
-    if (agentStatus === 'running') return true
+    if (agentStatus === 'running' || agentStatus === 'pausing') return true
     if (agentStatus === 'paused') {
       return Date.now() - lastLogTimestamp < IDLE_TIMEOUT
     }

ui/src/components/OrchestratorAvatar.tsx

@@ -103,6 +103,10 @@ function getStateAnimation(state: OrchestratorState): string {
       return 'animate-working'
     case 'monitoring':
       return 'animate-bounce-gentle'
+    case 'draining':
+      return 'animate-thinking'
+    case 'paused':
+      return ''
     case 'complete':
       return 'animate-celebrate'
     default:
@@ -121,6 +125,10 @@ function getStateGlow(state: OrchestratorState): string {
       return 'shadow-[0_0_16px_rgba(124,58,237,0.6)]'
     case 'monitoring':
       return 'shadow-[0_0_8px_rgba(167,139,250,0.4)]'
+    case 'draining':
+      return 'shadow-[0_0_10px_rgba(251,191,36,0.5)]'
+    case 'paused':
+      return ''
     case 'complete':
       return 'shadow-[0_0_20px_rgba(112,224,0,0.6)]'
     default:
@@ -141,6 +149,10 @@ function getStateDescription(state: OrchestratorState): string {
       return 'spawning agents'
     case 'monitoring':
       return 'monitoring progress'
+    case 'draining':
+      return 'draining active agents'
+    case 'paused':
+      return 'paused'
     case 'complete':
       return 'all features complete'
     default:

ui/src/components/ProgressDashboard.tsx

@@ -55,7 +55,7 @@ export function ProgressDashboard({
 
   const showThought = useMemo(() => {
     if (!thought) return false
-    if (agentStatus === 'running') return true
+    if (agentStatus === 'running' || agentStatus === 'pausing') return true
     if (agentStatus === 'paused') {
       return Date.now() - lastLogTimestamp < IDLE_TIMEOUT
     }