pptc 0.2.9

0.2.9 (plugin 0.2.11)

• New lint W_ELEMENT_OVERLAP: an el.add element that covers a
  text-bearing shape (placeholders incl. the footer/slide-number area,
  textboxes, tables, charts) is reported with the covered shape's name;
  --strict escalates to exit 7. Prompt boxes and picture areas are
  exempt; shapes removed earlier in the same ops document do not count.
• Reader: layout placeholders without their own geometry now inherit
  the master's matching placeholder frame -- capacity and overlap lint
  work on inheritance-based templates (e.g. Office default); layouts
  expose the reserved footer/slide-number/date frames.
• Plugin: element-placement rule (never cover text fields) and the
  concurrent-edit protocol (fresh state before every write, exit-6
  recovery: re-read, re-verify targets, rebuild, retry once).