- Add V2 Flyway migration with lawnet schema (judgments, corams,
  catchwords, artifacts, artifact_data, citations)
- Merge judgments and judgment_sources into one table with
  lawnet_docid and elitigation_slug columns
- Implement LawnetPostgresStore implementing LawnetStore interface
  using pg.Pool
- Wire BFF_STORAGE env var switch in getLawnetStore() factory
  (filesystem | postgres)
- Add BFF_STORAGE to compose.yaml and .env.example
- Add 19 PostgreSQL-backed integration tests that self-seed fixture
  data and skip when DATABASE_URL is absent

Refs: #49

@@ -0,0 +1,220 @@
+# Repository Tooling

@@ -0,0 +30,4 @@
+    metadata_payload   JSONB
+);
+
+CREATE TABLE catalog.elitigation_judgment (

@@ -4,3 +4,3 @@
 POSTGRES_PASSWORD=lawnet_dev
 DATABASE_URL=postgresql://lawnet:lawnet_dev@postgres:5432/lawnet
-
+BFF_STORAGE=filesystem

@@ -0,0 +57,4 @@
+export class LawnetPostgresStore implements LawnetStore {
+  constructor(private readonly pool: Pool) {}
+
+  async listJudgments(

@@ -0,0 +163,4 @@
+    return this.getElitigationOnlyJudgment(id);
+  }
+
+  private async getCanonicalJudgment(

@@ -0,0 +237,4 @@
+    };
+  }
+
+  private async getLawnetOnlyJudgment(

@@ -0,0 +285,4 @@
+    };
+  }
+
+  private async getElitigationOnlyJudgment(

@@ -0,0 +369,4 @@
+    };
+  }
+
+  private async fetchLawnetSourcesByJudgment(

@@ -0,0 +16,4 @@
+    CHECK (decision_number > 0)
+);
+
+CREATE TABLE catalog.lawnet_judgment (