v0.10.8

fix: eliminate Bungee loop buzzing with unbounded phase model

Remove post-grain position canonicalization that jumped bungeeSrcPos
back into loop range, disrupting Bungee's overlap-add continuity.
Position now grows unbounded; readExactLoopSample maps grain reads
through the loop at read time. Ping-pong flips speed only on actual
boundary crossings. UI cursor wraps position for display only.
Also make reseekStretcher loop-aware for startup consistency.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>