fix: typecheck and fix errors

[ezyang]

Stack from ghstack (oldest at bottom):

• chore: typecheck git_message.py #215
• chore: initialize project for configuration file typecheck #214
• fix: typecheck common.py and fix type errors #213
• fix: resolve type checking errors in code_command.py #212
• -> fix: typecheck and fix errors #211
• fix: typecheck and fix errors in glob.py #210
• fix: typecheck line_endings.py and create editorconfig stub #209

Run typecheck and fix errors. There are many errors so make a plan about which module to do first based on dependencies.

cbc5d78  (Base revision)
3e0e7f2  Fix return type of run_command to specify CompletedProcess type parameters
7c760d1  Add type parameter to CompletedProcess instantiation
d66377f  Fix type issue with wait_time in TimeoutExpired constructor by ensuring it's a float
688b278  Remove unnecessary isinstance check since input is already typed as Optional[str]
5069fc5  Add necessary imports and type definitions for anyio file operations
60cc81f  Fix the mode type parameter in async_open_text function
e658af6  Fix the mode type parameter in async_open_binary function
96e35cc  Fix the mode type parameter in async_write_text function
263feed  Fix the mode type parameter in async_write_binary function and remove the unnecessary newline parameter for binary mode
5208044  Update the async_readlines function to use OpenTextMode
9520770  Expand OpenTextMode and OpenBinaryMode literals to include write and append modes
dc10140  Add proper imports including type definitions
24b253e  Update async_open_text to use OpenTextMode
c495c2d  Update write_text_content to use Optional instead of union type
5eb7591  Fix the write mode by using an explicit OpenTextMode variable
7d8a50d  Update return type annotation in check_file_path_and_permissions
f02bdae  Fix returncode handling to avoid None value
121b4d9  Remove unused Any import
bea7686  Remove unused imports
07dd0c8  Fix async_readlines by using string literal for mode
f020f12  Remove unused imports from file_utils.py
6202623  Cast stdout to str in get_head_commit_message function
350e6ed  Cast stdout to str in get_head_commit_hash function
6683f1b  Cast stdout to str in get_repository_root function
ed6d8c0  Cast stdout to str in get_ref_commit_chat_id function
e214ad5  Cast tree_hash to str in create_commit_reference
672df85  Cast head_hash to str
1664682  Cast commit_hash to str
5d39ae8  Cast tree_hash and ref_message to str
5eb976c  Cast new_commit_hash to str
5e4e2bc  Fix chat_id parameter using Optional type
75fc0b2  Add Union to imports in code_command.py
9eb3519  Add necessary imports to common.py
572f0c3  Update truncate_output_content to handle bytes input
1f7c76a  Add type annotation for the result list in get_edit_snippet
ab4cd32  Add type annotation for processed_lines list in truncate_output_content
24e0ea9  Convert chat_id to string to fix type error in commit_changes call
c5a765a  Convert chat_id to string for earlier commit_changes call
HEAD     Auto-commit format changes

codemcp-id: 220-fix-typecheck-and-fix-errors