refactor(org-roam-config): indirect node-tags accessor for testability

`cj/org-roam-filter-by-tag' called `org-roam-node-tags' directly.
That accessor is generated by `cl-defstruct' and ships with a
compiler-macro that inlines the call to an `aref' against the
`cl-struct-org-roam-node-tags' tag variable at byte-compile time.

In tests, `cl-letf' on `(symbol-function 'org-roam-node-tags)' sets
the function cell but the byte-compiled call site never consults it
-- it executes the inlined `aref' instead.  When org-roam isn't
loaded (legitimate for a tag-filter unit test), the inlined code
fails with `void-variable cl-struct-org-roam-node-tags'.

Wrap the accessor in `cj/--org-roam-node-tags' that calls through
`funcall' with a quoted symbol.  Quoted symbols skip the
compiler-macro (which only fires on direct call forms), so the
funcall resolves the function cell at runtime and picks up the
test's `cl-letf' stub.  Production behavior is unchanged; tests
no longer need org-roam loaded.

0 files changed, 0 insertions, 0 deletions