feat(S05/T01): Unified workflow trust signals across the API, table, da…

- JobTrackerApi/Controllers/JobApplicationsController.cs
- JobTrackerApi.Tests/JobApplicationsWorkflowSignalsTests.cs
- job-tracker-ui/src/jobWorkflowSignals.ts
- job-tracker-ui/src/components/JobTable.tsx
- job-tracker-ui/src/components/DashboardView.tsx
- job-tracker-ui/src/components/RemindersView.tsx
- job-tracker-ui/src/workflow-trust-signals.test.tsx

job-tracker-ui/src/types.ts

@@ -11,6 +11,23 @@ export interface Company {
   pipelineStage?: string;
 }
 
+export type WorkflowActionKey = "package-work" | "follow-up" | "interview-prep" | "review-readiness";
+export type WorkflowWorkspaceTab = "tailored-cv" | "follow-up" | "interview-prep" | "readiness";
+
+export interface WorkflowSignal {
+  actionKey: WorkflowActionKey;
+  reason: string;
+  workspaceTab: WorkflowWorkspaceTab;
+  followMode?: string | null;
+  needsAttention: boolean;
+  hasPackageGap: boolean;
+  needsInterviewPrep: boolean;
+  needsFollowUpAction: boolean;
+  hasTailoredCv: boolean;
+  hasSavedApplicationAnswerDraft: boolean;
+  hasInterviewPrepNotes: boolean;
+}
+
 export interface JobApplication {
   id: number;
   jobTitle: string;
@@ -38,6 +55,7 @@ export interface JobApplication {
   fullSummary?: string | null;
   tailoredCvText?: string | null;
   tailoredCvUpdatedAt?: string | null;
+  workflowSignal?: WorkflowSignal | null;
 
   hasResume?: boolean;
   hasCoverLetter?: boolean;
@@ -48,7 +66,7 @@ export interface JobApplication {
   isDeleted?: boolean;
   deletedAt?: string;
   needsFollowUp?: boolean;
-  followUpReason?: string;
+  followUpReason?: string | null;
 }
 
 export interface CandidateFitChannelGuidance {
@@ -97,6 +115,7 @@ export interface ReadinessResponse {
   completed: string[];
   missing: string[];
   reminders: string[];
+  workflowSignal: WorkflowSignal;
 }
 
 export interface FollowUpDraft {