refactor: normalize module package headers and enforce them

The first-line header on 33 modules named the file without its .el extension (;;; font-config --- ... rather than ;;; font-config.el --- ...), the form checkdoc and package-lint expect and the other modules already use. I normalized all 33 to the canonical ;;; name.el --- summary shape. The change is line 1 only.

A new test, test-meta-package-headers.el, locks the convention. It checks every module for the canonical first line, Commentary before Code, a provide footer, and no BOM, and unit-tests the checker against each malformed shape so the guard itself is proven.

0 files changed, 0 insertions, 0 deletions