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/api/Controllers/CvMatcherController.cs

@@ -1,4 +1,6 @@
 using Api.Clients.Api.Contracts;
+using CvMatcher.Models.Requests;
+using CvMatcher.Models.Responses;
 using Models.Requests;
 using Models.Settings;
 using Api.Services.Contracts;
@@ -20,21 +22,27 @@ namespace Api.Controllers;
 public sealed class CvMatcherController : ControllerBase
 {
     private readonly ICvMatcherApi _cvApi;
+    private readonly IJobSearchApi _jobSearchApi;
     private readonly ICaptchaVerifier _captcha;
     private readonly FileStorageSettings _fileStorageSettings;
+    private readonly JobSearchLinkSettings _jobSearchLinkSettings;
     private readonly IEmailSender _emailSender;
     private readonly ILogger<CvMatcherController> _logger;
 
     public CvMatcherController(
         ICvMatcherApi cvApi,
+        IJobSearchApi jobSearchApi,
         ICaptchaVerifier captcha,
         IOptions<FileStorageSettings> fileStorageSettings,
+        IOptions<JobSearchLinkSettings> jobSearchLinkSettings,
         IEmailSender emailSender,
         ILogger<CvMatcherController> logger)
     {
         _cvApi = cvApi;
+        _jobSearchApi = jobSearchApi;
         _captcha = captcha;
         _fileStorageSettings = fileStorageSettings.Value;
+        _jobSearchLinkSettings = jobSearchLinkSettings.Value;
         _emailSender = emailSender;
         _logger = logger;
     }
@@ -136,10 +144,27 @@ public sealed class CvMatcherController : ControllerBase
                 ? request.JobUrl
                 : "Manual job description";
 
+            string? jobSearchLink = null;
+            if (!string.IsNullOrWhiteSpace(request.Email) && !string.IsNullOrWhiteSpace(request.CvDocumentId))
+            {
+                try
+                {
+                    var tokenResp = await _jobSearchApi.CreateTokenAsync(
+                        new CreateJobSearchTokenRequest { CvDocumentId = request.CvDocumentId, Email = request.Email },
+                        ct);
+                    var baseUrl = _jobSearchLinkSettings.BaseUrl.TrimEnd('/');
+                    jobSearchLink = $"{baseUrl}/api/cv-matcher/job-search/start?t={tokenResp.TokenId}";
+                }
+                catch (Exception ex)
+                {
+                    _logger.LogWarning(ex, "Could not create job search token. Email link will be omitted.");
+                }
+            }
+
             await _emailSender.SendMatchAsync(
                 request.Email,
                 SmtpEmailSender.BuildMatchEmailSubject(res.Score, jobLabel),
-                SmtpEmailSender.BuildMatchEmailBody(request.CvDocumentId ?? "N/A", res, jobLabel),
+                SmtpEmailSender.BuildMatchEmailBody(request.CvDocumentId ?? "N/A", res, jobLabel, jobSearchLink),
                 attachmentPath,
                 ct);
 
@@ -157,6 +182,45 @@ public sealed class CvMatcherController : ControllerBase
         }
     }
 
+    [HttpGet("job-search/start")]
+    [SwaggerOperation(Summary = "Start job search", Description = "Validates the one-time token and starts the background job search. Returns a simple HTML confirmation page.")]
+    public async Task<IActionResult> StartJobSearch([FromQuery] string t, CancellationToken ct)
+    {
+        try
+        {
+            var result = await _jobSearchApi.StartSearchAsync(t, ct);
+            var html = result.Status switch
+            {
+                StartJobSearchStatus.Started =>
+                    HtmlPage("Job search started", "Your job search has started. Results will be sent to your email shortly."),
+                StartJobSearchStatus.AlreadyUsed =>
+                    HtmlPage("Link already used", "This job search link has already been used."),
+                StartJobSearchStatus.Expired =>
+                    HtmlPage("Link expired", "This job search link has expired. Please request a new CV match to get a fresh link."),
+                _ =>
+                    HtmlPage("Invalid link", "This job search link is not valid.")
+            };
+            return Content(html, "text/html");
+        }
+        catch (Exception ex)
+        {
+            _logger.LogError(ex, "Job search start failed for token {Token}.", t);
+            return Content(HtmlPage("Error", "An error occurred. Please try again later."), "text/html");
+        }
+    }
+
+    private static string HtmlPage(string title, string message) => $$"""
+        <!DOCTYPE html>
+        <html lang="en">
+        <head><meta charset="utf-8"><title>{{title}} - MyAi.ro</title>
+        <style>body{font-family:sans-serif;display:flex;align-items:center;justify-content:center;height:100vh;margin:0;background:#f5f5f5}
+        .card{background:#fff;padding:2rem 3rem;border-radius:12px;box-shadow:0 2px 12px rgba(0,0,0,.1);text-align:center;max-width:480px}
+        h1{font-size:1.4rem;margin-bottom:.5rem}p{color:#555}</style>
+        </head>
+        <body><div class="card"><h1>{{title}}</h1><p>{{message}}</p></div></body>
+        </html>
+        """;
+
     private async Task CacheUploadedCvAsync(IFormFile file, string documentId, CancellationToken ct)
     {
         try