fix(admin): tune chat params, add Training sidebar link, fix reporting API keys

- Reduce chat history from 10 to 6 messages to fit context window
- Lower num_predict from 8192 to 2048 for faster responses
- Add Training module link to SDK sidebar navigation
- Add snake_case to camelCase key transformation for reporting API
  (Go backend returns snake_case, TypeScript expects camelCase)

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

admin-compliance/app/api/sdk/compliance-advisor/chat/route.ts

@@ -142,7 +142,7 @@ export async function POST(request: NextRequest) {
     // 3. Build messages array (limit history to last 10 messages)
     const messages = [
       { role: 'system', content: systemContent },
-      ...history.slice(-10).map((h: { role: string; content: string }) => ({
+      ...history.slice(-6).map((h: { role: string; content: string }) => ({
         role: h.role === 'user' ? 'user' : 'assistant',
         content: h.content,
       })),
@@ -159,7 +159,7 @@ export async function POST(request: NextRequest) {
         stream: true,
         options: {
           temperature: 0.3,
-          num_predict: 8192,
+          num_predict: 2048,
         },
       }),
       signal: AbortSignal.timeout(120000),