feat: Implement air-gap functionality with timeline impact and evidence snapshot services

- Added AirgapTimelineImpact, AirgapTimelineImpactInput, and AirgapTimelineImpactResult records for managing air-gap bundle import impacts.
- Introduced EvidenceSnapshotRecord, EvidenceSnapshotLinkInput, and EvidenceSnapshotLinkResult records for linking findings to evidence snapshots.
- Created IEvidenceSnapshotRepository interface for managing evidence snapshot records.
- Developed StalenessValidationService to validate staleness and enforce freshness thresholds.
- Implemented AirgapTimelineService for emitting timeline events related to bundle imports.
- Added EvidenceSnapshotService for linking findings to evidence snapshots and verifying their validity.
- Introduced AirGapOptions for configuring air-gap staleness enforcement and thresholds.
- Added minimal jsPDF stub for offline/testing builds in the web application.
- Created TypeScript definitions for jsPDF to enhance type safety in the web application.

deploy/helm/stellaops/templates/migrations.yaml

@@ -0,0 +1,50 @@
+{{- if and .Values.migrations.enabled .Values.migrations.jobs }}
+{{- range $job := .Values.migrations.jobs }}
+apiVersion: batch/v1
+kind: Job
+metadata:
+  name: {{ include "stellaops.fullname" $ }}-migration-{{ $job.name | trunc 30 | trimSuffix "-" }}
+  labels:
+    {{- include "stellaops.labels" $ | nindent 4 }}
+    stellaops.io/component: migration
+    stellaops.io/migration-name: {{ $job.name | quote }}
+spec:
+  backoffLimit: {{ default 3 $job.backoffLimit }}
+  ttlSecondsAfterFinished: {{ default 3600 $job.ttlSecondsAfterFinished }}
+  template:
+    metadata:
+      labels:
+        {{- include "stellaops.selectorLabels" $ | nindent 8 }}
+        stellaops.io/component: migration
+        stellaops.io/migration-name: {{ $job.name | quote }}
+    spec:
+      restartPolicy: {{ default "Never" $job.restartPolicy }}
+      serviceAccountName: {{ default "default" $job.serviceAccountName }}
+      containers:
+        - name: {{ $job.name | trunc 50 | trimSuffix "-" }}
+          image: {{ $job.image | quote }}
+          imagePullPolicy: {{ default "IfNotPresent" $job.imagePullPolicy }}
+          command: {{- if $job.command }} {{ toJson $job.command }} {{- else }} null {{- end }}
+          args: {{- if $job.args }} {{ toJson $job.args }} {{- else }} null {{- end }}
+          env:
+            {{- if $job.env }}
+            {{- range $k, $v := $job.env }}
+            - name: {{ $k }}
+              value: {{ $v | quote }}
+            {{- end }}
+            {{- end }}
+          envFrom:
+            {{- if $job.envFrom }}
+            {{- toYaml $job.envFrom | nindent 12 }}
+            {{- end }}
+          resources:
+            {{- if $job.resources }}
+            {{- toYaml $job.resources | nindent 12 }}
+            {{- else }}{}
+            {{- end }}
+      imagePullSecrets:
+        {{- if $.Values.global.image.pullSecrets }}
+        {{- toYaml $.Values.global.image.pullSecrets | nindent 8 }}
+        {{- end }}
+{{- end }}
+{{- end }}