Adds StartRecordingArgs.template_id + list_note_templates command;
renames built_in_template to summary_prompt_bias to disambiguate it
from the new NoteTemplate concept (same meeting-type identifiers,
different purpose). Also fixes refresh_notes_and_notify (the
rename/merge-speaker refresh path) to route through
Store::update_notes instead of a raw std::fs::write — it was bypassing
T8.2's FTS reindexing, a gap missed there because this call site uses
meeting_dir(meeting_id) without the & that my earlier grep matched on.
iamdoubz
2f56891d40