fix(pre-commit): correct env generation hook to use env.example

- Change pre-commit hook to generate env.example instead of overwriting .env
- Use direct settings-doc command instead of make docs-env
- This prevents the hook from overwriting user's BOT_TOKEN in .env file
- Now generates proper env.example template for documentation

Author: kzndotsh

.pre-commit-config.yaml

@@ -75,15 +75,15 @@ repos:
         language: system
         types: [file, python]
         pass_filenames: false
-      # Temporarily disabled - overwrites user's .env file with template
-      # - id: settings-doc-dotenv
-      #   name: Generate settings-doc .env
-      #   description: This hook generates a .env template from pydantic.BaseSettings
-      #     to a file.
-      #   entry: make docs-env
-      #   language: system
-      #   types: [file, python]
-      #   pass_filenames: false
+      - id: settings-doc-dotenv
+        name: Generate settings-doc env.example
+        description: This hook generates an env.example template from pydantic.BaseSettings
+          to a file.
+        entry: uv run settings-doc generate --module tux.shared.config.settings --output-format
+          dotenv --update env.example
+        language: system
+        types: [file, python]
+        pass_filenames: false
       # Temporarily disabled - causes conflicts with end-of-file-fixer
       # TODO: Re-enable once we resolve the newline handling issue
       # - id: settings-doc-env-example