Readout 1.0.1

1.0.1

Fixes the launch crash from 1.0.0 and a batch of correctness issues.

Launch crash (1.0.0 regression). 1.0.0 shipped Sparkle signed ad-hoc while
its embedded XPC services carried mismatched identities — dyld refused to load
the framework and macOS reported the app as incompatible. Sparkle is removed;
updates are checked against the GitHub Releases API (menu item and Settings
toggle kept, no bundled updater code, nothing to sign).

• Update check: manual (Readout → Check for Updates…) plus a weekly
  background check, both with English and Chinese UI
• Release workflow no longer pretends to sign/notarize without a certificate

Correctness.

• Heading anchors are now unique even when a literal Notes-1 heading
  collides with a repeated Notes (TOC jumps land on the right section)
• Raw-HTML remote media (<img>, <video>, <audio>) goes through the same
  click-to-load gate as Markdown images — documents can't phone home on open
• Autolinked URLs keep balanced trailing parens
  (…/wiki/X_(film) links fully)
• \[…\] display math renders; ```math vs ```latex intent clarified
• Editor links escape ?/# in file names; readout CLI handles --named files
• File watcher no longer aliases files that differ only by case
• Change rail ticks are real buttons with VoiceOver labels
• Baselines store a 500-char similarity excerpt (was 2000); scrolling no
  longer rewrites an unchanged baseline file

Docs. Keyboard table lists ⌘]/⌘[; design notes describe the 1:1 edit
rule, the real baseline format, and the media privacy gate. The app no longer
claims the default Markdown handler role (Alternate).