docs/INTERNALS.md -> docs/DEPENDENCIES.md

[bagder]

With some minor cleanups

[Copilot]

Pull request overview

This PR renames/reframes the former internal documentation file to focus on dependency minimum versions, and updates the docs distribution list accordingly.

Changes:

• Add docs/DEPENDENCIES.md to EXTRA_DIST and remove docs/INTERNALS.md from the docs distribution list.
• Update the document header/intro to reflect “curl dependencies” and remove the “Library Symbols” section.

Reviewed changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated 1 comment.

File	Description
docs/Makefile.am	Updates the EXTRA_DIST docs list to include DEPENDENCIES.md and drop INTERNALS.md.
docs/DEPENDENCIES.md	Renames/rewords the document to be dependency-focused and removes internals/symbol guidance text.

Comments suppressed due to low confidence (1)

docs/DEPENDENCIES.md:76

• The “Library Symbols” guidance was removed from the end of this document, and a repo-wide search no longer finds that convention documented anywhere else. If the intent is to move internals guidance out of this file, please relocate that section into docs/internals/ (or another contributor doc) rather than dropping it entirely.

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