v0.3.5 — proper ANSI Shadow logo

Visual polish: cleaner Claude-Code-style block banner.

Before: two figlet fonts mashed together → 'Dynamics' was unreadable.
After: single ANSI Shadow font, 'Alpha' stacked above 'Dynamics',
cyan+bold when on a TTY, plain text when piped.

No model / API changes — same weights, same behaviour, same tests.

Headline (unchanged)

• Mean canonical Ramachandran JSD 0.196 vs Microsoft Timewarp 0.468
  on the 4AA benchmark (2.39x lower, 3/3 peptide wins) at ~123K
  parameters total.