fix spelling and grammar errors

[moazreyad]

No description provided.

[lzjpaul]

are all these comments and not affecting the code implementations?

[moazreyad]

are all these comments and not affecting the code implementations?

The PR mainly corrects spelling and grammar in comments, documentation, CLI help, logs, warnings, and error messages. These edits do not change model calculations.

There are a few code/API-visible changes:

• The C++ declaration Boradcast is corrected to Broadcast.
• The SWIG-visible EnableLazyAlloc parameter changes from enbale to enable, which changes the keyword name exposed to Python callers.
• The returned string "unkown type" is corrected to "unknown type".
• The phase-one runner’s import was corrected. The PR imported controller.py, while the file was still named controler.py; I renamed the file to controller.py in
  the latest commit so the import resolves.

The remaining executable-file changes correct user-visible text, such as log messages, warnings, assertions, and CLI descriptions. So the PR is mostly text corrections, but it is not limited to comments. No model or training logic was changed.