Standardize pre-commit hooks and file size limit

- Add missing core hooks: check-case-conflict, check-vcs-permalinks, fix-byte-order-marker, mixed-line-ending, no-commit-to-branch, trailing-whitespace
- Standardize file size limit to 25KB

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <[email protected]>

Author: tobiasraabe

.pre-commit-config.yaml

@@ -3,11 +3,18 @@ repos:
     rev: v5.0.0
     hooks:
     -   id: check-added-large-files
-        args: ['--maxkb=100']
+        args: ['--maxkb=25']
+    -   id: check-case-conflict
     -   id: check-merge-conflict
+    -   id: check-vcs-permalinks
     -   id: check-yaml
     -   id: debug-statements
     -   id: end-of-file-fixer
+    -   id: fix-byte-order-marker
+    -   id: mixed-line-ending
+    -   id: no-commit-to-branch
+        args: [--branch, main]
+    -   id: trailing-whitespace
 -   repo: https://github.com/pre-commit/pygrep-hooks
     rev: v1.10.0
     hooks: