Add debug logging for dailyLog query

src/app/api/today/route.ts

@@ -75,12 +75,23 @@ export const GET = withAuth(async (_request, user, pb) => {
   let biometrics = { ...DEFAULT_BIOMETRICS, phaseLimit };
   try {
     const today = new Date().toISOString().split("T")[0];
+    logger.info({ userId: user.id, today }, "Fetching dailyLog");
     const dailyLog = await pb
       .collection("dailyLogs")
       .getFirstListItem<DailyLog>(`user="${user.id}" && date~"${today}"`, {
         sort: "-created",
       });
 
+    logger.info(
+      {
+        userId: user.id,
+        dailyLogId: dailyLog.id,
+        hrvStatus: dailyLog.hrvStatus,
+        bodyBatteryCurrent: dailyLog.bodyBatteryCurrent,
+      },
+      "Found dailyLog",
+    );
+
     biometrics = {
       hrvStatus: dailyLog.hrvStatus,
       bodyBatteryCurrent:
@@ -91,8 +102,8 @@ export const GET = withAuth(async (_request, user, pb) => {
       weekIntensityMinutes: dailyLog.weekIntensityMinutes,
       phaseLimit: dailyLog.phaseLimit,
     };
-  } catch {
+  } catch (err) {
-    // No daily log found - use defaults
+    logger.warn({ userId: user.id, err }, "No dailyLog found, using defaults");
   }
 
   // Build DailyData for decision engine