feat: add application package generation and grouped readiness workflows

JobTrackerApi/Services/SummarizerService.cs

@@ -35,6 +35,7 @@ namespace JobTrackerApi.Services
     public interface ISummarizerService
     {
         Task<string?> SummarizeAsync(string text, int maxLength = 150, int minLength = 30);
+        Task<string?> SummarizeSectionAsync(string instruction, string text, int maxLength = 180, int minLength = 40);
         Task RunProbeAsync(CancellationToken cancellationToken = default);
         Task<SummarizerMetrics> GetMetricsAsync(CancellationToken cancellationToken = default);
     }
@@ -75,6 +76,19 @@ namespace JobTrackerApi.Services
         {
             if (string.IsNullOrWhiteSpace(text)) return null;
 
+            return await SummarizeCoreAsync(text, maxLength, minLength);
+        }
+
+        public Task<string?> SummarizeSectionAsync(string instruction, string text, int maxLength = 180, int minLength = 40)
+        {
+            if (string.IsNullOrWhiteSpace(instruction) || string.IsNullOrWhiteSpace(text)) return Task.FromResult<string?>(null);
+
+            var composed = $"{instruction.Trim()}\n\n{text.Trim()}";
+            return SummarizeCoreAsync(composed, maxLength, minLength);
+        }
+
+        private async Task<string?> SummarizeCoreAsync(string text, int maxLength, int minLength)
+        {
             // Use a deterministic content hash instead of string.GetHashCode() so cache keys
             // are collision-resistant and stable across process restarts.
             var key = BuildCacheKey(text, maxLength, minLength);