Add LLM digest setup and share timestamp context

lib/features/ai_digest/application/ai_digest_response_parser.dart

@@ -69,6 +69,16 @@ class AiDigestResponseParser {
             suggestedFor:
                 _dateOrNull(item['suggestedFor']) ??
                 _dateOrNull(item['suggestedTiming']),
+            eventEndsAt:
+                _dateOrNull(item['eventEndsAt']) ??
+                _dateOrNull(item['endsAt']) ??
+                _dateOrNull(item['endTime']),
+            eventLocation: _optionalTrimAndCap(
+              _string(item['eventLocation']) ?? _string(item['location']),
+              160,
+            ),
+            eventUrl: _urlOrNull(item['eventUrl']) ?? _urlOrNull(item['url']),
+            sourceUrls: _sourceUrls(item['sourceUrls'] ?? item['sources']),
             confidence: _confidence(item['confidence']),
             status: AiSuggestionStatus.pending,
             sourceRunId: sourceRunId,
@@ -158,6 +168,40 @@ class AiDigestResponseParser {
     return DateTime.tryParse(value)?.toLocal();
   }
 
+  String? _urlOrNull(Object? raw) {
+    final String? value = _string(raw);
+    if (value == null) {
+      return null;
+    }
+    final Uri? uri = Uri.tryParse(value);
+    if (uri == null || !uri.hasScheme || uri.host.isEmpty) {
+      return null;
+    }
+    return uri.toString();
+  }
+
+  List<String> _sourceUrls(Object? raw) {
+    final List<Object?> values = raw is List<dynamic> ? raw : <Object?>[raw];
+    final Set<String> urls = <String>{};
+    for (final Object? value in values) {
+      if (value is Map<String, dynamic>) {
+        final String? url =
+            _urlOrNull(value['url']) ??
+            _urlOrNull(value['uri']) ??
+            _urlOrNull(value['link']);
+        if (url != null) {
+          urls.add(url);
+        }
+        continue;
+      }
+      final String? url = _urlOrNull(value);
+      if (url != null) {
+        urls.add(url);
+      }
+    }
+    return urls.take(5).toList(growable: false);
+  }
+
   double _confidence(Object? raw) {
     if (raw is num) {
       return raw.toDouble().clamp(0.0, 1.0).toDouble();
@@ -172,4 +216,12 @@ class AiDigestResponseParser {
     }
     return trimmed.substring(0, maxChars).trim();
   }
+
+  String? _optionalTrimAndCap(String? value, int maxChars) {
+    if (value == null) {
+      return null;
+    }
+    final String trimmed = _trimAndCap(value, maxChars);
+    return trimmed.isEmpty ? null : trimmed;
+  }
 }