fix: add proper logging for SMTP and AI brief generation

Logs now show:
- Whether SMTP is configured and which addresses emails go to
- Success/failure for each email (client brief + admin notification)
- Whether OpenRouter API key is set
- AI generation success/failure with status codes
- Fallback to template brief when AI is unavailable

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

src/app/(frontend)/api/configure/route.ts

@@ -78,9 +78,12 @@ Timeline: ${timeline}`;
 async function generateBriefWithAI(body: ConfigureRequestBody): Promise<string> {
   const apiKey = process.env.OPENROUTER_API_KEY;
   if (!apiKey) {
+    console.log('[configure] OPENROUTER_API_KEY not set, using fallback brief template');
     return generateFallbackBrief(body);
   }
 
+  console.log('[configure] Generating AI brief via OpenRouter (deepseek/deepseek-v3.2)...');
+
   const context = buildContext(body);
   const displayName = body.name.split(' ')[0] || body.name;
 
@@ -131,10 +134,12 @@ ${context}`;
     });
 
     if (!response.ok) {
-      console.error('OpenRouter API error:', response.status, response.statusText);
+      console.error(`[configure] OpenRouter API error: ${response.status} ${response.statusText}`);
       return generateFallbackBrief(body);
     }
 
+    console.log('[configure] AI brief generated successfully');
+
     const data = await response.json();
     const content = data.choices?.[0]?.message?.content;
 
@@ -144,9 +149,10 @@ ${context}`;
 
     return content;
   } catch (error) {
-    console.error('AI brief generation failed:', error);
+    console.error('[configure] AI brief generation failed:', error);
     return generateFallbackBrief(body);
   }
+
 }
 
 // ─── Fallback Brief (no API key or API failure) ──────────────────────────────
@@ -254,7 +260,12 @@ export async function POST(request: NextRequest) {
     const brief = await generateBriefWithAI(body);
 
     // Send emails (non-blocking — don't fail the response if email fails)
-    if (process.env.SMTP_HOST && process.env.SMTP_PASS) {
+    const smtpHost = process.env.SMTP_HOST;
+    const smtpPass = process.env.SMTP_PASS;
+
+    if (smtpHost && smtpPass) {
+      console.log(`[configure] SMTP configured (host: ${smtpHost}), sending emails to ${body.email} and ${process.env.ADMIN_EMAIL || 'hello@letsbe.biz'}...`);
+
       Promise.allSettled([
         sendBriefToClient({
           to: body.email,
@@ -270,9 +281,18 @@ export async function POST(request: NextRequest) {
           services: body.services,
           email: body.email,
         }),
-      ]).catch(() => {
+      ]).then((results) => {
-        console.error('Email sending failed');
+        results.forEach((result, i) => {
+          const target = i === 0 ? 'client brief' : 'admin notification';
+          if (result.status === 'fulfilled') {
+            console.log(`[configure] Email sent successfully: ${target}`);
+          } else {
+            console.error(`[configure] Email failed: ${target}`, result.reason);
+          }
+        });
       });
+    } else {
+      console.log(`[configure] SMTP not configured (SMTP_HOST: ${smtpHost ? 'set' : 'missing'}, SMTP_PASS: ${smtpPass ? 'set' : 'missing'}), skipping emails`);
     }
 
     return NextResponse.json({ success: true, brief });