feat: standalone module-build readiness for the public @ekklesia packages (ADR 0053)

Makes the public module-development package set usable from a module
repository outside the monorepo. Nothing is published.

- Curated @ekklesia/module-sdk: an explicit author API, no contracts
  barrel, no identity/authorization internals, no Drizzle and no legacy
  ModuleDatabase type. defineModuleRuntime returns the SDK's own named
  interfaces so a module's emitted declarations never reach into
  @ekklesia/contracts. defineModuleSchema is gone; createModuleTable and
  defineModuleSchemaMetadata live in @ekklesia/module-database.
- Drizzle: no longer a dependency of module-sdk or contracts. Core keeps
  the legacy Drizzle schema validator (moved to core/src/modules) and
  its legacy runtime support; drizzle-orm is an optional peer only.
- React is a peer (plus devDependency) of @ekklesia/ui; the boundary
  checker allows exactly that consumer-selected peer.
- @ekklesia/typescript-config is publishable; module-ui-host is private.
  Every public package carries "ekklesia.distribution":
  "module-development" and no monorepo-root prepack.
- module-pack reads the Node.js range from the module's own engines.node
  and recognizes Ekklesia packages by name plus that marker, so
  registry-installed packages are incorporated, SDK-compatibility
  checked, and never credited as third-party.
- scripts/pack-public-packages.ts (pnpm packages:pack) rebuilds, packs
  and inspects the nine public tarballs; scripts/test-standalone-module.sh
  (pnpm test:standalone-module, new CI job) installs them into a fixture
  module outside the repository and proves it typechecks, builds,
  packages, and verifies.
- Public-package boundary tests and module-development docs.

Co-Authored-By: Claude Opus 5.5 <[email protected]>

packages/contracts/tests/module-schema.test.ts

@@ -1,11 +1,5 @@
-import { alias, getTableConfig, integer } from "drizzle-orm/pg-core";
 import { describe, expect, it } from "vitest";
-import {
-  moduleTableName,
-  parseModuleSchemaDefinition,
-  physicalModuleTableNameSchema,
-} from "../src/index.js";
-import { pgTable } from "drizzle-orm/pg-core";
+import { moduleTableName, physicalModuleTableNameSchema } from "../src/index.js";
 
 describe("module schema contract", () => {
   it("creates deterministic physical names from module and local identifiers", () => {
@@ -22,33 +16,4 @@ describe("module schema contract", () => {
       "The namespaced PostgreSQL table name is invalid or too long.",
     );
   });
-
-  it("normalizes and freezes a typed schema definition without freezing its tables", () => {
-    const records = pgTable("example_records", { id: integer().primaryKey() });
-    const definition = parseModuleSchemaDefinition({
-      moduleId: "example",
-      tables: { records },
-    });
-
-    expect(definition.tables.records).toBe(records);
-    expect(getTableConfig(records).name).toBe("example_records");
-    expect(Object.isFrozen(definition)).toBe(true);
-    expect(Object.isFrozen(definition.tables)).toBe(true);
-    expect(Object.isFrozen(records)).toBe(false);
-  });
-
-  it("rejects malformed, empty, unknown, and non-PostgreSQL table definitions", () => {
-    const records = pgTable("example_records", { id: integer() });
-    const disguisedRecords = alias(records, "example_disguised_records");
-    expect(() => parseModuleSchemaDefinition({ moduleId: "example", tables: {} })).toThrow();
-    expect(() =>
-      parseModuleSchemaDefinition({ moduleId: "example", tables: { records: {} } }),
-    ).toThrow();
-    expect(() =>
-      parseModuleSchemaDefinition({ moduleId: "example", tables: { records }, extra: true }),
-    ).toThrow();
-    expect(() =>
-      parseModuleSchemaDefinition({ moduleId: "example", tables: { disguisedRecords } }),
-    ).toThrow();
-  });
 });