Add Chialisp (cl-26) language support

[darkverbito]

What

Adds Chialisp (cl-26) as a first-class indexed language. Chialisp is the smart-contract language of the Chia blockchain — an s-expression language compiled to CLVM.

Grammar

A clean-room tree-sitter grammar — irulast/tree-sitter-chialisp (MIT). A generic s-expression core (list/symbol/number/hex/string/comment) authored against the clvm_tools_rs compiler frontend; parses the full cl-26 surface (mod, defun, defmacro, defconstant, assign, lambda, include, embed-file, namespace, …). Vendored under internal/cbm/vendored/grammars/chialisp/ per the MANIFEST convention (ABI 14).

Wiring (mirrors the existing Scheme lisp-family path — zero new extractor functions)

• CBM_LANG_CHIALISP enum + lang_specs row (list/symbol node types); .clsp/.clib/.clinc extension mapping.
• CBM_LANG_CHIALISP added to the four lisp-family extractor gates (extract_defs/extract_calls/extract_imports/extract_unified).

Chialisp-correct extraction

Chialisp differs from the generic lisp path in a few load-bearing ways:

• def heads: defun, defun-inline, defmacro, defmac, defconstant, defconst, mod, namespace, export, embed-file, compile-file.
• mod/export named by filename — their named_child(1) is the arg list, not a name.
• CLVM primitive operators filtered from CALLS (the 49-entry clvm_tools_rs keyword table) so (sha256 …) / (+ …) / (c …) don't create phantom edges; sha256tree (a real defun) is kept.
• dialect sigils (include *standard-cl-26*) are not import edges (they select a dialect, not a file); (include "x.clib") is.
• quoted bodies (q …)/(quote …)/(qq …) are data — not descended.
• embed-file/compile-file emit a Constant node + a file-dependency edge.

Verification

Indexed a 313-file cl-26 corpus (304 .clsp + 9 .clib): 514 Functions, 469 Constants; CALLS to real helpers only (zero primitive phantoms, sha256tree kept); imports to real .clib only (zero dialect-sigil phantoms). The grammar parses all 313 files with zero ERROR/MISSING nodes. Clean -Werror build; Scheme/Clojure/CommonLisp regression samples unchanged. MANIFEST.md updated (grammar entry + custom-handling row).

[DeusData]

Thanks for the Chialisp language-support PR. Triage: language request / parsing backlog.

Because this vendors a new grammar, review will check provenance, MIT license compatibility, generated parser scope, and that the wiring does not pull in unrelated code. The lisp-family extractor reuse is a good constraint; please keep the PR narrow around that.