feat(lint-org): recognize cj-comment blocks and suppress false-positive warnings

org-lint emits three warnings for every `#+begin_src cj: comment ... #+end_src` annotation block: suspicious-language-in-src-block (the language `cj:` isn't a known Babel slug), wrong-header-argument (the trailing `comment` looks like a header arg without a colon), and empty-header-argument (that same `comment` has no value). All three are false positives. The cj-comment block is a Craig-specific annotation marker, not Babel src-block syntax.

I added a helper `lo--cj-comment-block-opener-p` that pattern-matches the opener line, then a short-circuit branch at the top of `lo--handle-item` that silently drops any of the three checkers when they fire on a cj-comment opener. No fix is counted, no judgment is emitted, and the warnings disappear.

Two new tests cover the change. The normal case is a solo cj-comment block, which should produce zero judgments and zero fixes with all three flagged checkers absent from the issue list. The boundary case is a cj-comment block alongside a real `#+begin_src markdown` block. The markdown warning still surfaces, which scopes the suppression to cj openers only — no leak into other src blocks.

Test count goes from 22 to 24, all green. I smoke-tested against rulesets/todo.org: judgment count drops from 7 to 1. Six cj-comment false positives at lines 16 and 1291 are gone, and the unrelated misplaced-heading at 2139 still surfaces correctly.

1 files changed, 18 insertions, 0 deletions

diff --git a/claude-templates/.ai/scripts/lint-org.el b/claude-templates/.ai/scripts/lint-org.el
index 3e643d4..64b78d0 100644
--- a/claude-templates/.ai/scripts/lint-org.el
+++ b/claude-templates/.ai/scripts/lint-org.el
@@ -221,11 +221,29 @@ org-lint reports the blank line after the heading-like text."
     ;; Fixer declined — emit as judgment so nothing is silently swallowed.
     (lo--emit-judgment name line msg))))
 
+(defun lo--cj-comment-block-opener-p (line)
+  "Non-nil when LINE in the current buffer is a `#+begin_src cj: ...' opener.
+The cj-comment annotation convention puts `cj:' as the src-block language and
+`comment' as the apparent header arg.  org-lint reads that shape three ways
+(unknown language, empty header-arg value, missing colon in header arg) and
+flags each — all three are false positives, since cj-comment is a
+Craig-specific annotation marker rather than Babel src-block syntax."
+  (save-excursion
+    (lo--goto-line line)
+    (looking-at-p "^[ \t]*#\\+begin_src[ \t]+cj:")))
+
 (defun lo--handle-item (item)
   (let ((name (lo--checker-name item))
         (line (lo--line item))
         (msg (lo--message item)))
     (cond
+     ;; Silent suppression of cj-comment false positives — see
+     ;; `lo--cj-comment-block-opener-p'.  No fix counted, no judgment emitted.
+     ((and (memq name '(suspicious-language-in-src-block
+                        empty-header-argument
+                        wrong-header-argument))
+           (lo--cj-comment-block-opener-p line))
+      nil)
      ((eq name 'item-number)
       (lo--apply-or-preview name line msg #'lo-fix-item-number))
      ((eq name 'missing-language-in-src-block)