Restore missing type exports for mcpb package

- Export McpbManifestAny and Logger types from types.js
- Export McpbSignatureInfo and McpbUserConfigValues from shared/common.ts
- Add exports to both main and browser entry points
- Bump version to 2.0.1

This eliminates the need for manual type inference in consuming code.

🤖 Generated with [Claude Code](https://claude.com/claude-code)

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

src/browser.ts

@@ -1,4 +1,6 @@
 // Browser-compatible exports
 export * from "./schemas/index.js";
+export * from "./shared/common.js";
 export * from "./shared/config.js";
 export * from "./shared/constants.js";
+export * from "./types.js";

src/index.ts

@@ -6,5 +6,7 @@ export * from "./node/files.js";
 export * from "./node/sign.js";
 export * from "./node/validate.js";
 export * from "./schemas/index.js";
+export * from "./shared/common.js";
 export * from "./shared/config.js";
 export * from "./shared/constants.js";
+export * from "./types.js";

src/shared/common.ts

@@ -13,3 +13,6 @@ export const McpbSignatureInfoSchema = z.strictObject({
   valid_to: z.string().optional(),
   fingerprint: z.string().optional(),
 });
+
+export type McpbSignatureInfo = z.infer<typeof McpbSignatureInfoSchema>;
+export type McpbUserConfigValues = z.infer<typeof McpbUserConfigValuesSchema>;