Elixir files opened as plain text: highlighting only came from
@codemirror/language-data, which has no Elixir mode. Grammars now carry
their own highlights.scm; `doc_highlights` folds its captures into a small
kind vocabulary (inner nodes and later patterns win, interpolation clears
the string colour), memoised per document version on the incremental
tree. The editor maps kinds onto Lezer tags, so colours follow the active
scheme, and requests them only when no CodeMirror mode exists.
Enabled for Elixir; other grammar-only languages need their query wired.
Claude-Session: https://claude.ai/code/session_01B65qLEKnkeYTGdbwhLpjCu
Opening another project in the same window left the previous project's state in
module-level stores: Amend and the commit message carried over, debug sessions kept
running, and Git Log, usages, hierarchy, inspection, HTTP client, recent locations,
navigation history and notifications still showed the old project.
Reset each of them on a project root change, stop the old debug sessions, ask about
unsaved changes before leaving a project, close the settings window (it would apply
to the new project) and end the indexing task when a scan is cancelled.