fix: resolve M-01..M-02, M-05..M-08, L-01..L-03, L-05 from pre-release review

M-01: Compose OperationDefinitionSchema from OperationSpecSchema via Type.Intersect
M-02: Extract from_openapi to subpath export, remove from main entry
M-05: Fix mapError fragile includes() matching — use startsWith(code+':') or exact
M-06: Replace any casts with MCPClientLike/MCPToolResult interfaces in from_mcp
M-07: Add injectable fetch to HTTPServiceConfig for from_openapi
M-08: Add OpenAPIServiceRegistry with lifecycle methods (add, remove, registerAll)
L-01: Validate subscription handler type at registration and runtime
L-02: Strengthen isResponseEnvelope with source-specific field validation
L-03: Add logger.warn on FromSchema fallback to Type.Unknown
L-04: Noted as intentional (SSE GET body handling)
L-05: Add registerAll to MCPClientLoader and OpenAPIServiceRegistry

test/response-envelope.test.ts

@@ -240,6 +240,46 @@ describe("isResponseEnvelope", () => {
   it("returns false for object with numeric meta", () => {
     expect(isResponseEnvelope({ data: "hello", meta: 42 })).toBe(false);
   });
+
+  it("returns false for local envelope missing operationId", () => {
+    expect(isResponseEnvelope({ data: "hello", meta: { source: "local", timestamp: Date.now() } })).toBe(false);
+  });
+
+  it("returns false for local envelope with non-string operationId", () => {
+    expect(isResponseEnvelope({ data: "hello", meta: { source: "local", operationId: 123, timestamp: Date.now() } })).toBe(false);
+  });
+
+  it("returns false for local envelope missing timestamp", () => {
+    expect(isResponseEnvelope({ data: "hello", meta: { source: "local", operationId: "op.test" } })).toBe(false);
+  });
+
+  it("returns false for local envelope with non-number timestamp", () => {
+    expect(isResponseEnvelope({ data: "hello", meta: { source: "local", operationId: "op.test", timestamp: "now" } })).toBe(false);
+  });
+
+  it("returns false for http envelope missing statusCode", () => {
+    expect(isResponseEnvelope({ data: "hello", meta: { source: "http", headers: {}, contentType: "text/plain" } })).toBe(false);
+  });
+
+  it("returns false for http envelope with non-number statusCode", () => {
+    expect(isResponseEnvelope({ data: "hello", meta: { source: "http", statusCode: "200", headers: {}, contentType: "text/plain" } })).toBe(false);
+  });
+
+  it("returns false for mcp envelope missing isError", () => {
+    expect(isResponseEnvelope({ data: "hello", meta: { source: "mcp", content: [] } })).toBe(false);
+  });
+
+  it("returns false for mcp envelope with non-boolean isError", () => {
+    expect(isResponseEnvelope({ data: "hello", meta: { source: "mcp", isError: "true", content: [] } })).toBe(false);
+  });
+
+  it("returns false for mcp envelope missing content", () => {
+    expect(isResponseEnvelope({ data: "hello", meta: { source: "mcp", isError: false } })).toBe(false);
+  });
+
+  it("returns false for mcp envelope with non-array content", () => {
+    expect(isResponseEnvelope({ data: "hello", meta: { source: "mcp", isError: true, content: "error" } })).toBe(false);
+  });
 });
 
 describe("unwrap", () => {