feat: complete release readiness work

- consolidate API ownership and remove dead vendor code

- add Stripe billing, learning paths, and public CV hardening

- add migration, recovery, security, audit, and browser gates

JobTrackerApi/Models/Job.cs

@@ -0,0 +1,55 @@
+using System;
+
+namespace JobTrackerApi.Models
+{
+    /// <summary>
+    /// A job opportunity — the role as the employer posted it, independent of whether the user
+    /// has applied. Separated from <see cref="JobApplication"/> (the user's pursuit of a job) so
+    /// that:
+    ///   - a job can be tracked before it is applied to (see JobPipeline's Prospect stages), and
+    ///   - applying twice to the same role does not duplicate the whole job description.
+    ///
+    /// Introduced in Phase 0 (2026-07-17). New applications dual-write this opportunity row while
+    /// <see cref="JobApplication"/> remains the read source during the incremental cutover.
+    ///
+    /// See docs/decisions/ADR-002-job-application-model.md.
+    /// </summary>
+    public class Job
+    {
+        public int Id { get; set; }
+        public string? OwnerUserId { get; set; }
+
+        public int CompanyId { get; set; }
+        public Company Company { get; set; } = null!;
+
+        public string JobTitle { get; set; } = "";
+        public string? Location { get; set; }
+        public string? JobUrl { get; set; }
+
+        // Imported job content.
+        public string? Description { get; set; }
+        public string? TranslatedDescription { get; set; }
+        public string? DescriptionLanguage { get; set; } // "en", "no", ...
+        public string? ShortSummary { get; set; }
+        public string? Tags { get; set; } // JSON array string, e.g. ["Azure","Docker"]
+        public DateTime? Deadline { get; set; }
+
+        // Structured salary; the free-text Salary field is kept for display/back-compat.
+        public string? Salary { get; set; }
+        public decimal? SalaryMin { get; set; }
+        public decimal? SalaryMax { get; set; }
+        public string? SalaryCurrency { get; set; } // e.g. "NOK", "GBP", "EUR"
+        public string? SalaryPeriod { get; set; }   // "year" | "month" | "hour"
+
+        // Where this job came from. Market is data, not an assumption: Jobjakt is Norway-first
+        // but must not hardcode Norway, so country travels with the job rather than being
+        // implied by the importer. Null = unknown/manually entered.
+        public string? Source { get; set; }      // e.g. "finn", "nav", "linkedin", "manual"
+        public string? CountryCode { get; set; } // ISO 3166-1 alpha-2, e.g. "NO", "GB"
+
+        /// <summary>When the user first captured this opportunity.</summary>
+        public DateTime SavedAt { get; set; } = DateTime.UtcNow;
+
+        public List<JobApplication> Applications { get; set; } = new();
+    }
+}