feat(ts): add real quality gates — Biome lint + effect-law ratchet + class inventory

- biome.json (2.4.16, linter-only) wired as "lint" in all six packages
- scripts/check-effect-laws.ts: Effect-native law enforcement encoding the
  adapted beep-effect effect-first/schema-first laws (no native JSON/switch/
  sort/fetch/timers, no process.env, no throw new, no Effect.run* outside
  boundaries, no Schema-suffixed constants, no node:fs/path, AST-based
  pure-data interface detection per law 38/39)
- ratcheting baseline allowlist (95 entries / 290 findings) that must shrink
  to documented exemptions only; stale counts fail the gate
- root lint chains turbo lint + law check + native-class inventory
- fix all 163 initial Biome findings: import-type style, templates, two `any`s,
  ten non-null assertions (librarian getService gate, A.matchRight in atoms,
  ensureNode returning nodes, main.tsx mount guard)

Gates: lint, check:tsgo, build, test (force, 11 tasks) all green.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

ts/packages/mcp/package.json

@@ -8,7 +8,8 @@
     "build": "bunx --bun tsc",
     "dev": "tsc --watch",
     "clean": "rm -rf dist",
-    "test": "bunx --bun vitest run --passWithNoTests --exclude=dist/**"
+    "test": "bunx --bun vitest run --passWithNoTests --exclude=dist/**",
+    "lint": "bunx --bun biome check src"
   },
   "dependencies": {
     "@trustgraph/base": "workspace:*",

ts/packages/mcp/src/__tests__/server-effect.test.ts

@@ -1,5 +1,6 @@
 import { describe, expect, it } from "@effect/vitest";
-import { DispatchStreamChunk, type BaseApi, type TrustGraphGatewayClient } from "@trustgraph/client";
+import type { BaseApi, TrustGraphGatewayClient } from "@trustgraph/client";
+import { DispatchStreamChunk, } from "@trustgraph/client";
 import { Effect, Layer, Stream } from "effect";
 import * as S from "effect/Schema";
 import { McpServer } from "effect/unstable/ai";
@@ -226,7 +227,7 @@ const makeNativeTestClientEffect = Effect.fn("makeNativeTestClient")(function*(
 const textContent = (result: McpSchema.CallToolResult): string => {
   const [content] = result.content;
   expect(content?.type).toBe("text");
-  return "text" in content! ? content.text : "";
+  return content !== undefined && "text" in content ? content.text : "";
 };
 
 describe("Effect MCP server", () => {

ts/packages/mcp/src/server-effect.ts

@@ -1,11 +1,13 @@
 import {BunHttpServer, BunRuntime} from "@effect/platform-bun";
 import {NodeRuntime, NodeStdio} from "@effect/platform-node";
+import type {
+  BaseApi,
+  Term as ClientTerm,
+  TrustGraphGatewayClient,
+} from "@trustgraph/client";
 import {
   createTrustGraphSocket,
   makeTrustGraphGatewayClientScoped,
-  type BaseApi,
-  type Term as ClientTerm,
-  type TrustGraphGatewayClient,
 } from "@trustgraph/client";
 import {Config, Context, Effect, Layer} from "effect";
 import * as O from "effect/Option";