Link pageFetcher.PageFetches to cvSearch.JobSearchSessions

Adds nullable JobSearchSessionId to PageFetchEntity and FetchPageRequest.
cv-search-job passes session.Id on every fetch so all Playwright page
loads for a job search session can be traced back to their session.
Includes index on JobSearchSessionId for efficient lookup.

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

Apis/page-fetcher-data/Migrations/20260608165542_AddJobSearchSessionId.Designer.cs

@@ -0,0 +1,88 @@
+// <auto-generated />
+using System;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Infrastructure;
+using Microsoft.EntityFrameworkCore.Metadata;
+using Microsoft.EntityFrameworkCore.Migrations;
+using Microsoft.EntityFrameworkCore.Storage.ValueConversion;
+using PageFetcher.Data;
+
+#nullable disable
+
+namespace PageFetcher.Data.Migrations
+{
+    [DbContext(typeof(PageFetchDbContext))]
+    [Migration("20260608165542_AddJobSearchSessionId")]
+    partial class AddJobSearchSessionId
+    {
+        /// <inheritdoc />
+        protected override void BuildTargetModel(ModelBuilder modelBuilder)
+        {
+#pragma warning disable 612, 618
+            modelBuilder
+                .HasDefaultSchema("pageFetcher")
+                .HasAnnotation("ProductVersion", "10.0.7")
+                .HasAnnotation("Relational:MaxIdentifierLength", 128);
+
+            SqlServerModelBuilderExtensions.UseIdentityColumns(modelBuilder);
+
+            modelBuilder.Entity("PageFetcher.Data.Entities.PageFetchEntity", b =>
+                {
+                    b.Property<string>("Id")
+                        .HasMaxLength(64)
+                        .HasColumnType("nvarchar(64)");
+
+                    b.Property<string>("CallerService")
+                        .IsRequired()
+                        .HasMaxLength(64)
+                        .HasColumnType("nvarchar(64)");
+
+                    b.Property<DateTime>("CreatedAt")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("datetime2")
+                        .HasDefaultValueSql("SYSUTCDATETIME()");
+
+                    b.Property<long>("DurationMs")
+                        .HasColumnType("bigint");
+
+                    b.Property<string>("ErrorMessage")
+                        .HasMaxLength(2000)
+                        .HasColumnType("nvarchar(2000)");
+
+                    b.Property<string>("Html")
+                        .IsRequired()
+                        .HasColumnType("nvarchar(max)");
+
+                    b.Property<int?>("HttpStatusCode")
+                        .HasColumnType("int");
+
+                    b.Property<string>("JobSearchSessionId")
+                        .HasMaxLength(64)
+                        .HasColumnType("nvarchar(64)");
+
+                    b.Property<bool>("Success")
+                        .HasColumnType("bit");
+
+                    b.Property<string>("Text")
+                        .IsRequired()
+                        .HasColumnType("nvarchar(max)");
+
+                    b.Property<string>("Url")
+                        .IsRequired()
+                        .HasMaxLength(2000)
+                        .HasColumnType("nvarchar(2000)");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("CreatedAt");
+
+                    b.HasIndex("JobSearchSessionId");
+
+                    b.HasIndex("Url");
+
+                    b.ToTable("PageFetches", "pageFetcher");
+                });
+#pragma warning restore 612, 618
+        }
+    }
+}

Apis/page-fetcher-data/Migrations/20260608165542_AddJobSearchSessionId.cs

@@ -0,0 +1,43 @@
+using PageFetcher.Data;
+using Microsoft.EntityFrameworkCore.Migrations;
+
+#nullable disable
+
+namespace PageFetcher.Data.Migrations
+{
+    /// <inheritdoc />
+    public partial class AddJobSearchSessionId : Migration
+    {
+        /// <inheritdoc />
+        protected override void Up(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.AddColumn<string>(
+                name: "JobSearchSessionId",
+                schema: MigrationConstants.SchemaName,
+                table: "PageFetches",
+                type: "nvarchar(64)",
+                maxLength: 64,
+                nullable: true);
+
+            migrationBuilder.CreateIndex(
+                name: "IX_PageFetches_JobSearchSessionId",
+                schema: MigrationConstants.SchemaName,
+                table: "PageFetches",
+                column: "JobSearchSessionId");
+        }
+
+        /// <inheritdoc />
+        protected override void Down(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.DropIndex(
+                name: "IX_PageFetches_JobSearchSessionId",
+                schema: MigrationConstants.SchemaName,
+                table: "PageFetches");
+
+            migrationBuilder.DropColumn(
+                name: "JobSearchSessionId",
+                schema: MigrationConstants.SchemaName,
+                table: "PageFetches");
+        }
+    }
+}

Apis/page-fetcher-data/Migrations/PageFetchDbContextModelSnapshot.cs

@@ -53,6 +53,10 @@ namespace PageFetcher.Data.Migrations
                     b.Property<int?>("HttpStatusCode")
                         .HasColumnType("int");
 
+                    b.Property<string>("JobSearchSessionId")
+                        .HasMaxLength(64)
+                        .HasColumnType("nvarchar(64)");
+
                     b.Property<bool>("Success")
                         .HasColumnType("bit");
 
@@ -69,6 +73,8 @@ namespace PageFetcher.Data.Migrations
 
                     b.HasIndex("CreatedAt");
 
+                    b.HasIndex("JobSearchSessionId");
+
                     b.HasIndex("Url");
 
                     b.ToTable("PageFetches", "pageFetcher");