v1.2.0

v1.2.0: pin ACF block version to 2 so inline fields render on WP 7.1

ACF PRO 6.8+ defaults block.json blocks to ACF block version 3 on WordPress 7.1+. Version 3 blocks always render a preview with an "Edit Block" modal and never draw the field form inline, iframe or not, so un-iframing the canvas alone no longer restored inline fields.

- Add tts_cc_acf_block_version() on acf/blocks/default_block_version, lowering the json default from 3 to 2. Explicit "blockVersion" values in block.json and PHP-registered blocks are untouched; the tts_inline_canvas_enabled kill switch disables it too.
- Bump plugin header to 1.2.0 (the v1.1.0 tag still reported 1.0.0).
- readme.txt: stable tag, block requirements, new FAQ entry, changelog for 1.1.0 and 1.2.0.
- README.md: document the block version pin.

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>