incremental diff mode

New incremental input. With incremental: true and reuse-comment: false, each report diffs against the commit covered by the previous report instead of the base branch — so a PR with several pushes gets per-commit diffs rather than the full PR diff repeated.

The starting point is read back from the header line of the last report comment; if that commit is gone (force-push) it falls back to the base branch. Maps are now fetched at head.sha instead of head.ref, so a report is pinned to the commit it names.

bump mudlet-map-diff to 1.5.0

Bump mudlet-map-diff to 1.5.0 (v15)

Special-exit edits are reported once, as mSpecialExits."<command>", instead
of also being restated in the on-disk rawSpecialExits form where the lock
flag reads as part of the command. Lock changes now name the command
rather than a destination room id.

Claude-Session: https://claude.ai/code/session_01L4WAsGrhUaBmQnT9kDGzXZ

bump mudlet-map-diff to 1.4.0

Bump mudlet-map-diff to 1.4.0 (v14)

1.4.0 stops reporting map changes nobody made: label pixMaps are compared
by decoded pixels rather than bytes (Qt re-encodes every label's PNG on a
Mudlet upgrade), coordinate tuples compare positionally again, and the
underlying binary reader normalises a map the way Mudlet does on load.

On two real Arkadia revisions the report goes from 823 rooms + 43 labels
to 73 rooms + 1 label — everything dropped was an upgrade artifact.

Claude-Session: https://claude.ai/code/session_01L4WAsGrhUaBmQnT9kDGzXZ

add progress, fix missing fontconfig

v13.RC.2

add progress rendering and fontconfig dependency

faster svg rendering

v13.RC.1

bump diff version

faster svg generation

v13

add progress rendering and fontconfig dependency

fix worker issue

v12

fix for worker not being picked up

multithreading, memory cleanup and details tag fix

Full Changelog: v10...v11

buffers...

remove buffers content from comment

fix download

v9.RC.7

fix downloading