chore: normalize all tracked files to LF line endings

Mechanical application of the `.gitattributes` rules from the prior commit.
All 50 files differ only in line endings — verified by
`git diff --cached --ignore-all-space` being empty.

Before: main had 42 CRLF + 27 LF Python files plus mixed-ending in YAML,
templates, and shell scripts. After: every text file is LF (except the
Windows-native *.ps1, *.bat scripts which remain CRLF per gitattributes).

This eliminates the noisy-diff failure mode seen in PR #102, where a
small logic change produced a 918-line diff due to whole-file CRLF→LF
conversion.

python/requirements.txt

@@ -1,13 +1,13 @@
-# KiCAD MCP Python Interface Requirements
-
-# Image processing
-Pillow>=9.0.0
-cairosvg>=2.7.0
-
-# Type hints
-typing-extensions>=4.0.0
-
-# Logging
-colorlog>=6.7.0
-
-kicad-skip
+# KiCAD MCP Python Interface Requirements
+
+# Image processing
+Pillow>=9.0.0
+cairosvg>=2.7.0
+
+# Type hints
+typing-extensions>=4.0.0
+
+# Logging
+colorlog>=6.7.0
+
+kicad-skip