OPC # 0001: Extract OPC into standalone repo

ControlPlane.Core/Models/OpcModels.cs

@@ -0,0 +1,73 @@
+namespace ControlPlane.Core.Models;
+
+public record OpcRecord(
+    Guid     Id,
+    string   Number,
+    string   Title,
+    string   Description,
+    string   Type,
+    string   Status,
+    string   Priority,
+    string   Assignee,
+    DateTime CreatedAt,
+    DateTime UpdatedAt
+);
+
+public record OpcNote(
+    Guid     Id,
+    Guid     OpcId,
+    string   Author,
+    string   Content,
+    DateTime CreatedAt
+);
+
+public record OpcArtifact(
+    Guid     Id,
+    Guid     OpcId,
+    string   ArtifactType,
+    string   Title,
+    string   Content,
+    DateTime CreatedAt,
+    DateTime UpdatedAt
+);
+
+// Request / response shapes used by the API endpoints
+
+public record CreateOpcRequest(
+    string Title,
+    string Type,
+    string Priority,
+    string Assignee,
+    string Description
+);
+
+public record UpdateOpcRequest(
+    string? Title,
+    string? Description,
+    string? Type,
+    string? Status,
+    string? Priority,
+    string? Assignee
+);
+
+public record AddNoteRequest(string Author, string Content);
+
+public record UpsertArtifactRequest(
+    string ArtifactType,
+    string Title,
+    string Content
+);
+
+public record AiAssistRequest(string Prompt, string? Context);
+
+public record OpcPinnedCommit(
+    Guid     OpcId,
+    string   Hash,
+    string   ShortHash,
+    string   Subject,
+    string   Author,
+    DateTime PinnedAt,
+    string   PinnedBy
+);
+
+public record PinCommitRequest(string Hash, string PinnedBy);