feat(db): 0002 内容域——entry/locale/revision + 修订不可变 + 回填 content_entry FK

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

apps/api/drizzle/0002_fancy_silver_centurion.sql

@@ -0,0 +1,55 @@
+CREATE TYPE "public"."content_lifecycle_status" AS ENUM('active', 'archived');--> statement-breakpoint
+CREATE TYPE "public"."revision_source_kind" AS ENUM('import', 'manual', 'restore');--> statement-breakpoint
+CREATE TABLE "content_entries" (
+	"id" uuid PRIMARY KEY DEFAULT gen_random_uuid() NOT NULL,
+	"site_id" uuid NOT NULL,
+	"type_key" text NOT NULL,
+	"lifecycle_status" "content_lifecycle_status" NOT NULL,
+	"created_at" timestamp with time zone DEFAULT now() NOT NULL,
+	"updated_at" timestamp with time zone DEFAULT now() NOT NULL
+);
+--> statement-breakpoint
+CREATE TABLE "content_revisions" (
+	"id" uuid PRIMARY KEY DEFAULT gen_random_uuid() NOT NULL,
+	"site_id" uuid NOT NULL,
+	"content_entry_id" uuid NOT NULL,
+	"locale" text NOT NULL,
+	"schema_version" integer NOT NULL,
+	"data" jsonb NOT NULL,
+	"checksum" text NOT NULL,
+	"source_kind" "revision_source_kind" NOT NULL,
+	"source_record_id" uuid,
+	"import_job_id" uuid,
+	"overridden_fields" jsonb DEFAULT '[]'::jsonb NOT NULL,
+	"created_by" text NOT NULL,
+	"created_at" timestamp with time zone DEFAULT now() NOT NULL
+);
+--> statement-breakpoint
+CREATE TABLE "entry_locales" (
+	"id" uuid PRIMARY KEY DEFAULT gen_random_uuid() NOT NULL,
+	"site_id" uuid NOT NULL,
+	"content_entry_id" uuid NOT NULL,
+	"locale" text NOT NULL,
+	"slug" text NOT NULL,
+	"current_revision_id" uuid,
+	"published_revision_id" uuid,
+	"created_at" timestamp with time zone DEFAULT now() NOT NULL,
+	"updated_at" timestamp with time zone DEFAULT now() NOT NULL
+);
+--> statement-breakpoint
+ALTER TABLE "content_entries" ADD CONSTRAINT "content_entries_site_id_sites_id_fk" FOREIGN KEY ("site_id") REFERENCES "public"."sites"("id") ON DELETE no action ON UPDATE no action;--> statement-breakpoint
+ALTER TABLE "content_revisions" ADD CONSTRAINT "content_revisions_site_id_sites_id_fk" FOREIGN KEY ("site_id") REFERENCES "public"."sites"("id") ON DELETE no action ON UPDATE no action;--> statement-breakpoint
+ALTER TABLE "content_revisions" ADD CONSTRAINT "content_revisions_content_entry_id_content_entries_id_fk" FOREIGN KEY ("content_entry_id") REFERENCES "public"."content_entries"("id") ON DELETE no action ON UPDATE no action;--> statement-breakpoint
+ALTER TABLE "content_revisions" ADD CONSTRAINT "content_revisions_import_job_id_import_jobs_id_fk" FOREIGN KEY ("import_job_id") REFERENCES "public"."import_jobs"("id") ON DELETE no action ON UPDATE no action;--> statement-breakpoint
+ALTER TABLE "entry_locales" ADD CONSTRAINT "entry_locales_site_id_sites_id_fk" FOREIGN KEY ("site_id") REFERENCES "public"."sites"("id") ON DELETE no action ON UPDATE no action;--> statement-breakpoint
+ALTER TABLE "entry_locales" ADD CONSTRAINT "entry_locales_content_entry_id_content_entries_id_fk" FOREIGN KEY ("content_entry_id") REFERENCES "public"."content_entries"("id") ON DELETE no action ON UPDATE no action;--> statement-breakpoint
+CREATE INDEX "content_entries_site_type_idx" ON "content_entries" USING btree ("site_id","type_key");--> statement-breakpoint
+CREATE UNIQUE INDEX "entry_locales_uq" ON "entry_locales" USING btree ("site_id","content_entry_id","locale");--> statement-breakpoint
+-- ↓ 手写追加（drizzle-kit 不生成触发器）：修订不可变，复用 0001 的 sf_forbid_update。
+--   发布 = 只 UPDATE entry_locales 双指针（current/published），修订行本身库级禁改禁删（ADR-010）。
+CREATE TRIGGER content_revisions_immutable BEFORE UPDATE OR DELETE ON content_revisions
+  FOR EACH ROW EXECUTE FUNCTION sf_forbid_update();--> statement-breakpoint
+-- 补 source_records.content_entry_id → content_entries FK（Task 7 预留，schema 层不声明故由手写 SQL 回填）
+ALTER TABLE source_records
+  ADD CONSTRAINT source_records_content_entry_id_fkey
+  FOREIGN KEY (content_entry_id) REFERENCES content_entries(id);

apps/api/drizzle/meta/_journal.json

@@ -15,6 +15,13 @@
       "when": 1792495504658,
       "tag": "0001_broken_microchip",
       "breakpoints": true
+    },
+    {
+      "idx": 2,
+      "version": "7",
+      "when": 1792496109431,
+      "tag": "0002_fancy_silver_centurion",
+      "breakpoints": true
     }
   ]
 }