feat(discovery): add FindingDrawer component and restructure i18n keys

- Add FindingDrawer component for displaying finding details when no
  associated issue exists
- Refactor i18n keys for better organization:
  - status.* → session.status.* (session-related)
  - severity.* → findings.severity.* (finding-related)
- Update DiscoveryDetail to show FindingDrawer for orphan findings
- Add severity/priority mapping in discovery-routes for compatibility

ccw/frontend/src/components/issue/discovery/DiscoveryCard.tsx

@@ -21,17 +21,17 @@ const statusConfig = {
   running: {
     icon: Clock,
     variant: 'warning' as const,
-    label: 'issues.discovery.status.running',
+    label: 'issues.discovery.session.status.running',
   },
   completed: {
     icon: CheckCircle,
     variant: 'success' as const,
-    label: 'issues.discovery.status.completed',
+    label: 'issues.discovery.session.status.completed',
   },
   failed: {
     icon: XCircle,
     variant: 'destructive' as const,
-    label: 'issues.discovery.status.failed',
+    label: 'issues.discovery.session.status.failed',
   },
 };
 
@@ -79,7 +79,7 @@ export function DiscoveryCard({ session, isActive, onClick }: DiscoveryCardProps
       <div className="flex items-center justify-between text-sm">
         <div className="flex items-center gap-4">
           <div className="flex items-center gap-1">
-            <span className="text-muted-foreground">{formatMessage({ id: 'issues.discovery.findings' })}:</span>
+            <span className="text-muted-foreground">{formatMessage({ id: 'issues.discovery.session.findings' }, { count: session.findings_count })}:</span>
             <span className="font-medium text-foreground">{session.findings_count}</span>
           </div>
         </div>

ccw/frontend/src/components/issue/discovery/DiscoveryDetail.tsx

@@ -12,6 +12,7 @@ import { Tabs, TabsList, TabsTrigger, TabsContent } from '@/components/ui/Tabs';
 import { Badge } from '@/components/ui/Badge';
 import { Progress } from '@/components/ui/Progress';
 import { IssueDrawer } from '@/components/issue/hub/IssueDrawer';
+import { FindingDrawer } from './FindingDrawer';
 import type { DiscoverySession, Finding } from '@/lib/api';
 import type { Issue } from '@/lib/api';
 import type { FindingFilters } from '@/hooks/useIssues';
@@ -43,6 +44,7 @@ export function DiscoveryDetail({
   const { formatMessage } = useIntl();
   const [activeTab, setActiveTab] = useState('findings');
   const [selectedIssue, setSelectedIssue] = useState<Issue | null>(null);
+  const [selectedFinding, setSelectedFinding] = useState<Finding | null>(null);
   const [selectedIds, setSelectedIds] = useState<string[]>([]);
 
   const handleFindingClick = (finding: Finding) => {
@@ -51,14 +53,21 @@ export function DiscoveryDetail({
       const relatedIssue = issues.find(i => i.id === finding.issue_id);
       if (relatedIssue) {
         setSelectedIssue(relatedIssue);
+        return;
       }
     }
+    // Otherwise, show the finding details in FindingDrawer
+    setSelectedFinding(finding);
   };
 
-  const handleCloseDrawer = () => {
+  const handleCloseIssueDrawer = () => {
     setSelectedIssue(null);
   };
 
+  const handleCloseFindingDrawer = () => {
+    setSelectedFinding(null);
+  };
+
   const handleExportSelected = async () => {
     if (onExportSelected && selectedIds.length > 0) {
       await onExportSelected(selectedIds);
@@ -130,7 +139,7 @@ export function DiscoveryDetail({
         <Badge
           variant={session.status === 'completed' ? 'success' : session.status === 'failed' ? 'destructive' : 'warning'}
         >
-          {formatMessage({ id: `issues.discovery.status.${session.status}` })}
+          {formatMessage({ id: `issues.discovery.session.status.${session.status}` })}
         </Badge>
         <span className="text-sm text-muted-foreground">
           {formatMessage({ id: 'issues.discovery.createdAt' })}: {formatDate(session.created_at)}
@@ -192,7 +201,7 @@ export function DiscoveryDetail({
                   <Badge
                     variant={severity === 'critical' || severity === 'high' ? 'destructive' : severity === 'medium' ? 'warning' : 'secondary'}
                   >
-                    {formatMessage({ id: `issues.discovery.severity.${severity}` })}
+                    {formatMessage({ id: `issues.discovery.findings.severity.${severity}` })}
                   </Badge>
                   <span className="font-medium">{count}</span>
                 </div>
@@ -240,7 +249,7 @@ export function DiscoveryDetail({
               <Badge
                 variant={session.status === 'completed' ? 'success' : session.status === 'failed' ? 'destructive' : 'warning'}
               >
-                {formatMessage({ id: `issues.discovery.status.${session.status}` })}
+                {formatMessage({ id: `issues.discovery.session.status.${session.status}` })}
               </Badge>
             </div>
             <div>
@@ -277,7 +286,14 @@ export function DiscoveryDetail({
       <IssueDrawer
         issue={selectedIssue}
         isOpen={selectedIssue !== null}
-        onClose={handleCloseDrawer}
+        onClose={handleCloseIssueDrawer}
+      />
+
+      {/* Finding Detail Drawer */}
+      <FindingDrawer
+        finding={selectedFinding}
+        isOpen={selectedFinding !== null}
+        onClose={handleCloseFindingDrawer}
       />
     </div>
   );

ccw/frontend/src/components/issue/discovery/FindingDrawer.tsx

@@ -0,0 +1,213 @@
+// ========================================
+// FindingDrawer Component
+// ========================================
+// Right-side finding detail drawer for displaying discovery finding details
+
+import { useEffect } from 'react';
+import { useIntl } from 'react-intl';
+import { X, FileText, AlertTriangle, ExternalLink, MapPin, Code, Lightbulb, Target } from 'lucide-react';
+import { Badge } from '@/components/ui/Badge';
+import { Button } from '@/components/ui/Button';
+import { cn } from '@/lib/utils';
+import type { Finding } from '@/lib/api';
+
+// ========== Types ==========
+export interface FindingDrawerProps {
+  finding: Finding | null;
+  isOpen: boolean;
+  onClose: () => void;
+}
+
+// ========== Severity Configuration ==========
+const severityConfig: Record<string, { label: string; variant: 'default' | 'secondary' | 'destructive' | 'outline' | 'success' | 'warning' | 'info' }> = {
+  critical: { label: 'issues.discovery.findings.severity.critical', variant: 'destructive' },
+  high: { label: 'issues.discovery.findings.severity.high', variant: 'destructive' },
+  medium: { label: 'issues.discovery.findings.severity.medium', variant: 'warning' },
+  low: { label: 'issues.discovery.findings.severity.low', variant: 'secondary' },
+};
+
+function getSeverityConfig(severity: string) {
+  return severityConfig[severity] || { label: 'issues.discovery.findings.severity.unknown', variant: 'outline' };
+}
+
+// ========== Component ==========
+
+export function FindingDrawer({ finding, isOpen, onClose }: FindingDrawerProps) {
+  const { formatMessage } = useIntl();
+
+  // ESC key to close
+  useEffect(() => {
+    if (!isOpen) return;
+    const handleEsc = (e: KeyboardEvent) => {
+      if (e.key === 'Escape') onClose();
+    };
+    window.addEventListener('keydown', handleEsc);
+    return () => window.removeEventListener('keydown', handleEsc);
+  }, [isOpen, onClose]);
+
+  if (!finding || !isOpen) {
+    return null;
+  }
+
+  const severity = getSeverityConfig(finding.severity);
+
+  return (
+    <>
+      {/* Overlay */}
+      <div
+        className={cn(
+          'fixed inset-0 bg-black/40 transition-opacity z-40',
+          isOpen ? 'opacity-100' : 'opacity-0 pointer-events-none'
+        )}
+        onClick={onClose}
+        aria-hidden="true"
+      />
+
+      {/* Drawer */}
+      <div
+        className={cn(
+          'fixed top-0 right-0 h-full w-1/2 bg-background border-l border-border shadow-2xl z-50 flex flex-col transition-transform duration-300 ease-in-out',
+          isOpen ? 'translate-x-0' : 'translate-x-full'
+        )}
+        role="dialog"
+        aria-modal="true"
+        style={{ minWidth: '400px', maxWidth: '800px' }}
+      >
+        {/* Header */}
+        <div className="flex items-start justify-between p-6 border-b border-border bg-card">
+          <div className="flex-1 min-w-0 mr-4">
+            <div className="flex items-center gap-2 mb-2 flex-wrap">
+              <span className="text-xs font-mono text-muted-foreground">{finding.id}</span>
+              <Badge variant={severity.variant}>
+                {formatMessage({ id: severity.label })}
+              </Badge>
+              {finding.type && (
+                <Badge variant="outline">{finding.type}</Badge>
+              )}
+              {finding.category && (
+                <Badge variant="info">{finding.category}</Badge>
+              )}
+            </div>
+            <h2 className="text-lg font-semibold text-foreground">
+              {finding.title}
+            </h2>
+          </div>
+          <Button variant="ghost" size="icon" onClick={onClose} className="flex-shrink-0 hover:bg-secondary">
+            <X className="h-5 w-5" />
+          </Button>
+        </div>
+
+        {/* Content */}
+        <div className="flex-1 overflow-y-auto p-6 space-y-6">
+          {/* Description */}
+          <div>
+            <h3 className="text-sm font-semibold text-foreground mb-2 flex items-center gap-2">
+              <AlertTriangle className="h-4 w-4" />
+              {formatMessage({ id: 'issues.discovery.findings.description' })}
+            </h3>
+            <p className="text-sm text-muted-foreground whitespace-pre-wrap">
+              {finding.description}
+            </p>
+          </div>
+
+          {/* File Location */}
+          {finding.file && (
+            <div>
+              <h3 className="text-sm font-semibold text-foreground mb-2 flex items-center gap-2">
+                <MapPin className="h-4 w-4" />
+                {formatMessage({ id: 'issues.discovery.findings.location' })}
+              </h3>
+              <div className="flex items-center gap-2 text-sm">
+                <FileText className="h-4 w-4 text-muted-foreground" />
+                <code className="px-2 py-1 bg-muted rounded text-xs">
+                  {finding.file}
+                  {finding.line && `:${finding.line}`}
+                </code>
+              </div>
+            </div>
+          )}
+
+          {/* Code Snippet */}
+          {finding.code_snippet && (
+            <div>
+              <h3 className="text-sm font-semibold text-foreground mb-2 flex items-center gap-2">
+                <Code className="h-4 w-4" />
+                {formatMessage({ id: 'issues.discovery.findings.codeSnippet' })}
+              </h3>
+              <pre className="p-3 bg-muted rounded-md overflow-x-auto text-xs border border-border">
+                <code>{finding.code_snippet}</code>
+              </pre>
+            </div>
+          )}
+
+          {/* Suggested Fix */}
+          {finding.suggested_issue && (
+            <div>
+              <h3 className="text-sm font-semibold text-foreground mb-2 flex items-center gap-2">
+                <Lightbulb className="h-4 w-4" />
+                {formatMessage({ id: 'issues.discovery.findings.suggestedFix' })}
+              </h3>
+              <p className="text-sm text-muted-foreground whitespace-pre-wrap">
+                {finding.suggested_issue}
+              </p>
+            </div>
+          )}
+
+          {/* Confidence */}
+          {finding.confidence !== undefined && (
+            <div>
+              <h3 className="text-sm font-semibold text-foreground mb-2 flex items-center gap-2">
+                <Target className="h-4 w-4" />
+                {formatMessage({ id: 'issues.discovery.findings.confidence' })}
+              </h3>
+              <div className="flex items-center gap-2">
+                <div className="flex-1 h-2 bg-muted rounded-full overflow-hidden">
+                  <div
+                    className={cn(
+                      "h-full transition-all",
+                      finding.confidence >= 0.9 ? "bg-green-500" :
+                      finding.confidence >= 0.7 ? "bg-yellow-500" : "bg-red-500"
+                    )}
+                    style={{ width: `${finding.confidence * 100}%` }}
+                  />
+                </div>
+                <span className="text-sm font-medium">
+                  {Math.round(finding.confidence * 100)}%
+                </span>
+              </div>
+            </div>
+          )}
+
+          {/* Reference */}
+          {finding.reference && (
+            <div>
+              <h3 className="text-sm font-semibold text-foreground mb-2 flex items-center gap-2">
+                <ExternalLink className="h-4 w-4" />
+                {formatMessage({ id: 'issues.discovery.findings.reference' })}
+              </h3>
+              <a
+                href={finding.reference}
+                target="_blank"
+                rel="noopener noreferrer"
+                className="text-sm text-primary hover:underline break-all"
+              >
+                {finding.reference}
+              </a>
+            </div>
+          )}
+
+          {/* Perspective */}
+          {finding.perspective && (
+            <div className="pt-4 border-t border-border">
+              <Badge variant="secondary" className="text-xs">
+                {formatMessage({ id: 'issues.discovery.findings.perspective' })}: {finding.perspective}
+              </Badge>
+            </div>
+          )}
+        </div>
+      </div>
+    </>
+  );
+}
+
+export default FindingDrawer;

ccw/frontend/src/components/issue/discovery/FindingList.tsx

@@ -24,14 +24,14 @@ interface FindingListProps {
 }
 
 const severityConfig: Record<string, { variant: 'destructive' | 'warning' | 'secondary' | 'outline' | 'success' | 'info' | 'default'; label: string }> = {
-  critical: { variant: 'destructive', label: 'issues.discovery.severity.critical' },
+  critical: { variant: 'destructive', label: 'issues.discovery.findings.severity.critical' },
-  high: { variant: 'destructive', label: 'issues.discovery.severity.high' },
+  high: { variant: 'destructive', label: 'issues.discovery.findings.severity.high' },
-  medium: { variant: 'warning', label: 'issues.discovery.severity.medium' },
+  medium: { variant: 'warning', label: 'issues.discovery.findings.severity.medium' },
-  low: { variant: 'secondary', label: 'issues.discovery.severity.low' },
+  low: { variant: 'secondary', label: 'issues.discovery.findings.severity.low' },
 };
 
 function getSeverityConfig(severity: string) {
-  return severityConfig[severity] || { variant: 'outline', label: 'issues.discovery.severity.unknown' };
+  return severityConfig[severity] || { variant: 'outline', label: 'issues.discovery.findings.severity.unknown' };
 }
 
 export function FindingList({
@@ -116,10 +116,10 @@ export function FindingList({
           </SelectTrigger>
           <SelectContent>
             <SelectItem value="all">{formatMessage({ id: 'issues.discovery.findings.severity.all' })}</SelectItem>
-            <SelectItem value="critical">{formatMessage({ id: 'issues.discovery.severity.critical' })}</SelectItem>
+            <SelectItem value="critical">{formatMessage({ id: 'issues.discovery.findings.severity.critical' })}</SelectItem>
-            <SelectItem value="high">{formatMessage({ id: 'issues.discovery.severity.high' })}</SelectItem>
+            <SelectItem value="high">{formatMessage({ id: 'issues.discovery.findings.severity.high' })}</SelectItem>
-            <SelectItem value="medium">{formatMessage({ id: 'issues.discovery.severity.medium' })}</SelectItem>
+            <SelectItem value="medium">{formatMessage({ id: 'issues.discovery.findings.severity.medium' })}</SelectItem>
-            <SelectItem value="low">{formatMessage({ id: 'issues.discovery.severity.low' })}</SelectItem>
+            <SelectItem value="low">{formatMessage({ id: 'issues.discovery.findings.severity.low' })}</SelectItem>
           </SelectContent>
         </Select>
         {uniqueTypes.length > 0 && (

ccw/frontend/src/lib/api.ts

@@ -1077,6 +1077,12 @@ export interface Finding {
   created_at: string;
   issue_id?: string; // Associated issue ID if exported
   exported?: boolean; // Whether this finding has been exported as an issue
+  // Additional fields from discovery backend
+  category?: string;
+  suggested_issue?: string;
+  confidence?: number;
+  reference?: string;
+  perspective?: string;
 }
 
 export async function fetchDiscoveries(projectPath?: string): Promise<DiscoverySession[]> {
@@ -1131,7 +1137,11 @@ export async function fetchDiscoveryFindings(
     ? `/api/discoveries/${encodeURIComponent(sessionId)}/findings?path=${encodeURIComponent(projectPath)}`
     : `/api/discoveries/${encodeURIComponent(sessionId)}/findings`;
   const data = await fetchApi<{ findings?: Finding[] }>(url);
-  return data.findings ?? [];
+  // Map backend 'priority' to frontend 'severity' for compatibility
+  return (data.findings ?? []).map(f => ({
+    ...f,
+    severity: f.severity || (f as any).priority || 'medium'
+  }));
 }
 
 /**

ccw/frontend/src/locales/en/issues.json

@@ -353,7 +353,14 @@
       "hasIssue": "Linked",
       "export": "Export",
       "selectAll": "Select All",
-      "deselectAll": "Deselect All"
+      "deselectAll": "Deselect All",
+      "description": "Description",
+      "location": "Location",
+      "codeSnippet": "Code Snippet",
+      "suggestedFix": "Suggested Fix",
+      "confidence": "Confidence",
+      "reference": "Reference",
+      "perspective": "Perspective"
     },
     "tabs": {
       "findings": "Findings",

ccw/frontend/src/locales/zh/issues.json

@@ -353,7 +353,14 @@
       "hasIssue": "已关联",
       "export": "导出",
       "selectAll": "全选",
-      "deselectAll": "取消全选"
+      "deselectAll": "取消全选",
+      "description": "问题描述",
+      "location": "文件位置",
+      "codeSnippet": "代码片段",
+      "suggestedFix": "建议修复",
+      "confidence": "置信度",
+      "reference": "参考链接",
+      "perspective": "视角"
     },
     "tabs": {
       "findings": "发现",

ccw/frontend/src/pages/DiscoveryPage.tsx

@@ -7,7 +7,7 @@ import { useIntl } from 'react-intl';
 import { Radar, AlertCircle, Loader2 } from 'lucide-react';
 import { Card } from '@/components/ui/Card';
 import { Badge } from '@/components/ui/Badge';
-import { useIssueDiscovery } from '@/hooks/useIssues';
+import { useIssueDiscovery, useIssues } from '@/hooks/useIssues';
 import { DiscoveryCard } from '@/components/issue/discovery/DiscoveryCard';
 import { DiscoveryDetail } from '@/components/issue/discovery/DiscoveryDetail';
 
@@ -29,6 +29,12 @@ export function DiscoveryPage() {
     isExporting,
   } = useIssueDiscovery({ refetchInterval: 3000 });
 
+  // Fetch issues to find related ones when clicking findings
+  const { issues } = useIssues({
+    // Don't apply filters to get all issues for matching
+    filter: undefined
+  });
+
   if (error) {
     return (
       <div className="space-y-6">
@@ -167,6 +173,7 @@ export function DiscoveryPage() {
               onExport={exportFindings}
               onExportSelected={exportSelectedFindings}
               isExporting={isExporting}
+              issues={issues}
             />
           )}
         </div>

ccw/src/core/routes/discovery-routes.ts

@@ -262,7 +262,13 @@ function flattenFindings(perspectiveResults: any[]): any[] {
   const allFindings: any[] = [];
   for (const result of perspectiveResults) {
     if (result.findings) {
-      allFindings.push(...result.findings);
+      // Map backend 'priority' to frontend 'severity' for compatibility
+      const mappedFindings = result.findings.map((f: any) => ({
+        ...f,
+        severity: f.severity || f.priority || 'medium',
+        sessionId: f.discovery_id || result.discovery_id
+      }));
+      allFindings.push(...mappedFindings);
     }
   }
   return allFindings;

ccw/src/tools/write-file.ts

@@ -105,8 +105,8 @@ export const schema: ToolSchema = {
   name: 'write_file',
   description: `Write content to file. Auto-creates parent directories.
 
-Usage: write_file(path="file.js", content="code here")
+Required: path (string), content (string)
-Options: backup=true (backup before overwrite), createDirectories=false (disable auto-creation), encoding="utf8"`,
+Options: backup=true, createDirectories=false, encoding="utf8"`,
   inputSchema: {
     type: 'object',
     properties: {