feat: scaffold electron orchestrator foundation

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

src/shared/domain/workspace.ts

@@ -0,0 +1,25 @@
+import type { PatternDefinition } from '@shared/domain/pattern';
+import { createBuiltinPatterns } from '@shared/domain/pattern';
+import type { ProjectRecord } from '@shared/domain/project';
+import type { SessionRecord } from '@shared/domain/session';
+import { nowIso } from '@shared/utils/ids';
+
+export interface WorkspaceState {
+  projects: ProjectRecord[];
+  patterns: PatternDefinition[];
+  sessions: SessionRecord[];
+  selectedProjectId?: string;
+  selectedPatternId?: string;
+  selectedSessionId?: string;
+  lastUpdatedAt: string;
+}
+
+export function createWorkspaceSeed(): WorkspaceState {
+  const timestamp = nowIso();
+  return {
+    projects: [],
+    patterns: createBuiltinPatterns(timestamp),
+    sessions: [],
+    lastUpdatedAt: timestamp,
+  };
+}