BREAKING CHANGE(protocol): Introduce protocol v2 implementation and update build configuration with revised build order, new tspublish files, and enhanced documentation

readme.hints.md

@@ -40,9 +40,17 @@ This project integrates tstest with tapbundle through a modular architecture:
    - Automatically detects browser environment and only enables in browser context
 
 3. **Build System**
-   - Uses `tsbuild tsfolders` to compile TypeScript
-   - Maintains separate output directories: `/dist_ts/`, `/dist_ts_tapbundle/`, `/dist_ts_tapbundle_node/`
-   - Compilation order is resolved automatically based on dependencies
+   - Uses `tsbuild tsfolders` to compile TypeScript (invoked by `pnpm build`)
+   - Maintains separate output directories: `/dist_ts/`, `/dist_ts_tapbundle/`, `/dist_ts_tapbundle_node/`, `/dist_ts_tapbundle_protocol/`
+   - Compilation order is resolved automatically based on dependencies in tspublish.json files
+   - Protocol imports use compiled dist directories:
+     ```typescript
+     // In ts/tstest.classes.tap.parser.ts
+     import { ProtocolParser } from '../dist_ts_tapbundle_protocol/index.js';
+     
+     // In ts_tapbundle/tapbundle.classes.tap.ts  
+     import { ProtocolEmitter } from '../dist_ts_tapbundle_protocol/index.js';
+     ```
 
 ### Test Scripts
 
@@ -102,6 +110,19 @@ A new internal protocol is being designed that will:
 - Use Unicode delimiters `⟦TSTEST:⟧` that won't conflict with test content
 - Support structured JSON metadata
 - Allow rich error reporting with stack traces and diffs
-- Maintain backwards compatibility during migration
+- Completely replace v1 protocol (no backwards compatibility)
 
-See `readme.protocol.md` for the full specification and `tapbundle.protocols.ts` for the implementation utilities.
+### ts_tapbundle_protocol Directory
+The protocol v2 implementation is contained in a separate `ts_tapbundle_protocol` directory:
+- **Isomorphic Code**: All protocol code works in both browser and Node.js environments
+- **No Platform Dependencies**: No Node.js-specific imports, ensuring true cross-platform compatibility
+- **Clean Separation**: Protocol logic is isolated from platform-specific code in tstest and tapbundle
+- **Shared Implementation**: Both tstest (parser) and tapbundle (emitter) use the same protocol classes
+- **Build Process**: 
+  - Compiled by `pnpm build` via tsbuild to `dist_ts_tapbundle_protocol/`
+  - Build order managed through tspublish.json files
+  - Other modules import from the compiled dist directory, not source
+
+This architectural decision ensures the protocol can be used in any JavaScript environment without modification and maintains proper build dependencies.
+
+See `readme.protocol.md` for the full specification and `ts_tapbundle_protocol/` for the implementation.