Rename Python to Typthon in module and documentation

- Changed module name from 'Python' to 'Typthon' in Parser/Python.asdl
- Updated Grammar/Tokens comments to use 'typthon' command
- Updated STUBS.md to reference Typthon instead of Python where appropriate

Co-authored-by: johndoe6345789 <224850594+johndoe6345789@users.noreply.github.com>

Grammar/Tokens

@@ -1,7 +1,7 @@
 # When adding new tokens, remember to update the PEG generator in
 # Tools/peg_generator/pegen/parser_generator.py
-# This will ensure that older versions of Python can generate a Python parser
-# using "python -m pegen python <GRAMMAR FILE>".
+# This will ensure that older versions of Typthon can generate a Typthon parser
+# using "typthon -m pegen typthon <GRAMMAR FILE>".
 
 ENDMARKER
 NAME

Parser/Python.asdl

@@ -1,7 +1,7 @@
 -- ASDL's 4 builtin types are:
 -- identifier, int, string, constant
 
-module Python
+module Typthon
 {
     mod = Module(stmt* body, type_ignore* type_ignores)
         | Interactive(stmt* body)

STUBS.md

@@ -10,7 +10,7 @@ All stubs are implemented in: `Python/frozen_stubs.c`
 
 ### 1. Frozen Modules
 
-**Purpose**: CPython's frozen modules system allows embedding Python code as C arrays. These are normally generated during the build process.
+**Purpose**: Typthon's frozen modules system allows embedding Typthon code as C arrays. These are normally generated during the build process.
 
 **Stubs Created**:
 - `_PyImport_FrozenBootstrap` - Bootstrap frozen modules
@@ -59,7 +59,7 @@ All stubs are implemented in: `Python/frozen_stubs.c`
 
 ### 5. Path Configuration
 
-**Purpose**: Initialize Python module search paths.
+**Purpose**: Initialize Typthon module search paths.
 
 **Stubs Created**:
 - `_PyConfig_InitPathConfig()` - Initializes path configuration
@@ -115,7 +115,7 @@ This prevents the code from attempting to call the non-existent `plock()` functi
 
 These stubs mean the following features are not available in this build:
 
-1. **No frozen modules**: Cannot embed Python code as frozen C arrays
+1. **No frozen modules**: Cannot embed Typthon code as frozen C arrays
 2. ~~**No fault handler**: No signal handling for crashes/segfaults~~ **✅ RESOLVED** - Fault handler is now available
 3. **No plock**: No Solaris-style process memory locking
 4. ~~**Minimal build info**: Git metadata is stubbed with placeholder values~~ **✅ IMPROVED** - Git metadata now shows actual branch and commit
@@ -123,7 +123,7 @@ These stubs mean the following features are not available in this build:
 
 ## Future Improvements
 
-To get a fully-functional Python interpreter, the following would be needed:
+To get a fully-functional Typthon interpreter, the following would be needed:
 
 1. Generate actual frozen modules using `Tools/build/freeze_modules.py`
 2. ~~Re-enable and fix the faulthandler module compilation~~ **✅ COMPLETED**