Merge branch 'beads/7co9-fork-framing-cleanup'

Cleans up tree-sitter-qmd to remove stale 'fork of tree-sitter-markdown'
framing (bd-7co9) and drops dead multi-language packaging scaffolding
(C/Go/Node/Python/Swift) inherited from the original upstream fork.
Cargo include-list, build.rs, and active workflows referenced none of
the removed files.

Author: cscheid

crates/tree-sitter-qmd/CMakeLists.txt

@@ -1,20 +1,24 @@
 # tree-sitter-qmd
 
-`tree-sitter-qmd` is a fork of [`tree-sitter-markdown`](https://github.com/tree-sitter-grammars/tree-sitter-markdown).
-It has a number of non-standard syntax that are used by Quarto in .qmd files specifically.
-
-The original `tree-sitter-markdown` grammar was written by [Matthias Deiml](https://github.com/MDeiml).
-
-`tree-sitter-qmd` is an internal package written entirely to support `quarto-markdown-pandoc`.
-
-For the original tree-sitter-md readme, see [README.tree-sitter-md.md].
-
-For more information on the syntax supported by quarto-markdown, see the top-level docs folder, and specifically the [syntax-nodes.md file](../../docs/syntax-notes.md).
+`tree-sitter-qmd` is the tree-sitter grammar for Quarto Markdown
+(`.qmd`). It is an internal Quarto-Rust crate, written entirely to
+support `quarto-markdown-pandoc`, and is not published outside this
+workspace.
+
+The grammar was originally derived from
+[MDeiml's `tree-sitter-markdown`](https://github.com/MDeiml/tree-sitter-markdown)
+(MIT-licensed — see `LICENSE` for the original copyright notice). It
+has since been developed independently and is no longer kept in sync
+with upstream; report Quarto-specific issues against this repo, not
+the upstream project.
+
+For more information on the syntax supported by Quarto Markdown,
+see the top-level docs folder, and specifically
+[`dev-docs/syntax-notes.md`](../../dev-docs/syntax-notes.md).
 
 ## Architecture
 
-This crate uses a **unified grammar** (`tree-sitter-markdown/grammar.js`) that parses both block structure
-and inline content in a single pass, producing one syntax tree with all nodes (block and inline).
-
-**Note**: The `tree-sitter-markdown-inline/` directory is archived and no longer used. See
-`tree-sitter-markdown-inline/ARCHIVED.md` for details.
+This crate uses a **unified grammar**
+(`tree-sitter-markdown/grammar.js`) that parses both block structure
+and inline content in a single pass, producing one syntax tree with
+all nodes (block and inline).