Deploy JobSync — job search tracker on ringtail k3s (#288)

## Summary

C2 Mikado chain to deploy [JobSync](https://github.com/Gsync/jobsync) — a self-hosted job application tracker — to ringtail's k3s cluster.

### Mikado Graph

```
deploy-jobsync (goal)
├── build-jobsync-container
│   └── mirror-jobsync
└── integrate-jobsync-ollama
```

### What is JobSync?

Next.js app with SQLite for tracking job applications. Features resume management, application pipeline tracking, and AI-powered resume review/job matching.

### Key Decisions

- **Ringtail k3s** (not minikube-indri) — colocates with Ollama for zero-latency AI
- **Nix container** via `buildLayeredImage` — no Dockerfile, mirrors upstream source on forge
- **Ollama for AI** — uses existing deployment, no API keys needed for AI features
- **No upstream fork** — vanilla JobSync, Anthropic AI deferred to future work if needed

### Current Status

Planning phase — cards committed, ready for review before implementation begins.

Reviewed-on: #288

service-versions.yaml

@@ -155,6 +155,13 @@ services:
     current-version: "2026.2.0"
     upstream-source: https://github.com/goauthentik/authentik/releases
 
+  - name: jobsync
+    type: argocd
+    last-reviewed: null
+    current-version: "1.1.4"
+    upstream-source: https://github.com/Gsync/jobsync/releases
+    notes: Job application tracker; nix container on ringtail k3s
+
   - name: ollama
     type: argocd
     last-reviewed: "2026-03-02"