fix: namespace-qualify chrome_print() in test helper (#344)

* fix: namespace-qualify chrome_print() in test helper

testit 0.16 removed the library() call from test_pkg(), so the
package is no longer attached to the search path during tests.
print_pdf() is defined in the runner script (global env), so
chrome_print must be namespace-qualified to be found.

* Ignore AI related files

* Correctly name workflows

Author: cderv

.Rbuildignore

@@ -6,3 +6,5 @@ inst/examples$
 ^codecov\.yml$
 ^\.github$
 ^LICENSE\.md$
+^\.positai$
+^\.claude$

.github/workflows/R-CMD-check.yaml

@@ -22,7 +22,7 @@ jobs:
   R-CMD-check:
     runs-on: ${{ matrix.config.os }}
 
-    name: ${{ matrix.config.os }} (${{ matrix.config.r }})
+    name: ${{ matrix.config.os }} (${{ matrix.config.r }}) [Pandoc ${{matrix.config.pandoc}}]
 
     strategy:
       fail-fast: false

.gitignore

@@ -2,3 +2,5 @@
 .Rhistory
 .RData
 .Ruserdata
+.positai
+AGENTS.md

tests/test-ci.R

@@ -1,7 +1,7 @@
 # run tests on CI (these tests depend on Chrome)
 
 print_pdf = function(input, output = tempfile(), ...) {
-  chrome_print(input, output, ...)
+  pagedown::chrome_print(input, output, ...)
 }
 
 if (!is.na(Sys.getenv('CI', NA))) {