feat: Add global relationships management to GlobalSymbolIndex

- Introduced a new schema version (v2) with a global_relationships table.
- Implemented CRUD operations for file relationships, including update and delete functionalities.
- Added query capabilities for relationships by target and symbols.
- Created migration logic from v1 to v2 schema.
- Enhanced tests for global relationships, covering various scenarios including insertion, querying, and deletion.

docs: Add update-single command for generating module documentation

- Created a new command to generate manual-style documentation (CLAUDE.md) for a single module.
- Detailed execution process and implementation phases for the command.
- Included usage examples and error handling guidelines.

feat: Implement team command for CLI interface

- Added a new team command for logging and retrieving messages in a team message bus.
- Supported subcommands for logging, reading, listing, and checking status of messages.
- Included error handling and JSON output options.

test: Add comprehensive tests for global relationships

- Developed extensive tests for the global_relationships table in GlobalSymbolIndex.
- Covered schema creation, migration, CRUD operations, and performance benchmarks.
- Ensured project isolation and validated query functionalities for relationships.

ccw/frontend/src/components/issue/hub/ObservabilityPanel.tsx

@@ -142,12 +142,12 @@ export function ObservabilityPanel() {
               <label className="block text-xs font-medium text-muted-foreground mb-1">
                 {formatMessage({ id: 'issues.observability.filters.type' })}
               </label>
-              <Select value={type} onValueChange={(v) => setType(v)}>
+              <Select value={type || '__all__'} onValueChange={(v) => setType(v === '__all__' ? '' : v)}>
                 <SelectTrigger>
                   <SelectValue placeholder={formatMessage({ id: 'issues.observability.filters.typeAll' })} />
                 </SelectTrigger>
                 <SelectContent>
-                  <SelectItem value="">{formatMessage({ id: 'issues.observability.filters.typeAll' })}</SelectItem>
+                  <SelectItem value="__all__">{formatMessage({ id: 'issues.observability.filters.typeAll' })}</SelectItem>
                   {EVENT_TYPES.map((t) => (
                     <SelectItem key={t} value={t}>
                       {t}

ccw/frontend/src/components/issue/hub/QueuePanel.tsx

@@ -209,7 +209,7 @@ export function QueuePanel() {
                 </SelectTrigger>
                 <SelectContent>
                   {(historyIndex.queues || []).length === 0 ? (
-                    <SelectItem value="" disabled>
+                    <SelectItem value="__none__" disabled>
                       {formatMessage({ id: 'issues.queue.history.empty' })}
                     </SelectItem>
                   ) : (

ccw/frontend/src/components/issue/queue/QueueExecuteInSession.tsx

@@ -215,7 +215,7 @@ export function QueueExecuteInSession({ item, className }: { item: QueueItem; cl
             </SelectTrigger>
             <SelectContent>
               {sessions.length === 0 ? (
-                <SelectItem value="" disabled>
+                <SelectItem value="__none__" disabled>
                   {formatMessage({ id: 'issues.terminal.session.none' })}
                 </SelectItem>
               ) : (

ccw/frontend/src/components/issue/queue/QueueSendToOrchestrator.tsx

@@ -267,7 +267,7 @@ export function QueueSendToOrchestrator({ item, className }: { item: QueueItem;
             </SelectTrigger>
             <SelectContent>
               {sessions.length === 0 ? (
-                <SelectItem value="" disabled>
+                <SelectItem value="__none__" disabled>
                   {formatMessage({ id: 'issues.terminal.session.none' })}
                 </SelectItem>
               ) : (

ccw/frontend/src/components/lite-tasks/LiteContextContent.tsx

@@ -248,7 +248,7 @@ function ContextContent({
                 <div className="space-y-0.5 pl-2 max-h-32 overflow-y-auto">
                   {ctx.relevant_files.map((f, i) => {
                     const filePath = typeof f === 'string' ? f : f.path;
-                    const reason = typeof f === 'string' ? undefined : (f.rationale || f.reason);
+                    const reason = typeof f === 'string' ? undefined : f.reason;
                     return (
                       <div key={i} className="group flex items-start gap-1 text-muted-foreground hover:bg-muted/30 rounded px-1 py-0.5">
                         <span className="text-primary/50 shrink-0">{i + 1}.</span>