v0.1.34 — history browser + live stream scroll

This release tightens one of the last rough edges in the terminal UX: prompt recall, wheel scrolling, and live stream rendering now stop fighting each other.

What changed

• replaced shell-style empty-prompt history recall with a dedicated prompt-history browser
  • Ctrl+R and /history [query] now open a centered overlay with filter-as-you-type recall, preview, and draft restoration on Esc
  • bare ↑ / ↓ are now pure scroll keys again
• restored alternate-scroll behavior when mouse off is active
  • Successor now enables DECSET ?1007 when it is not capturing the mouse, and turns it back off when mouse on reclaims wheel events
• made live stream rows part of the scrollable viewport
  • while the model is thinking or responding, the visible stream rows now contribute to scroll headroom instead of temporarily pinning the viewport harder than the committed transcript
• added first-class prompt/KV diagnostics on top of the cache-friendly llama.cpp loop
  • completed stream trace events now record first-token latency, total stream latency, raw provider timings, prompt cache hit ratio, and a conservative suspected-KV-miss flag
  • /perf with /kv alias reports the last few completed turns with slot id, stable hash, cache_n, prompt_n, and prompt-eval timing

Verification

• ruff check src tests
• PYTHONPATH=src pytest -q
  • 1254 passed in 25.23s
• focused interaction coverage:
  • prompt-history browser open/filter/accept/restore paths
  • terminal alternate-scroll toggle behavior in mouse off
  • live-stream scroll headroom while the model is still talking