Add internet job search feature (cv-search-job)

- New cv-search-models shared library: EF entities + CvSearchDbContext for cvSearch schema (JobSearchTokens, JobSearchSessions, JobSearchResults tables)
- New cv-search-job worker service: polls DB for pending sessions, scrapes job boards via configurable HTML scraping, runs LLM scoring via cv-matcher-api, emails ranked results
- cv-matcher-api: JobTokenService creates one-time tokens; JobSearchController handles link clicks and creates sessions
- api: proxies job-search start endpoint, appends job search link to match result email
- CI workflow updated to build and push myai-cv-search-job:staging image
- CLAUDE.md documentation added for all affected services

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

Apis/cv-search-models/Data/Entities/JobSearchTokenEntity.cs

@@ -0,0 +1,11 @@
+namespace CvSearch.Models.Data.Entities;
+
+public sealed class JobSearchTokenEntity
+{
+    public string Id { get; set; } = string.Empty;
+    public string CvDocumentId { get; set; } = string.Empty;
+    public string Email { get; set; } = string.Empty;
+    public DateTime ExpiresAt { get; set; }
+    public bool Used { get; set; }
+    public DateTime CreatedAt { get; set; } = DateTime.UtcNow;
+}