v0.9.3

A fix-up and polish release with no new features to speak of

81bd27c 🤖 fix: allow non-git directories and clarify trunk branch requirement (#1068)
e2170ba 🤖 feat: add filter_exclude to bash_output tool (#1081)
f3a5890 🤖 fix: provider settings subscription race condition (#1066)
48ca952 🤖 fix: strip trailing slashes from project paths (#1065)
f6fda01 🤖 feat: add editor deep links for browser mode (#1078)
087ebb9 🤖 feat: collapse consecutive bash_output calls in UI (#1045)
385830d 🤖 perf: context-efficient plan mode (#1072)
92fd55f 🤖 fix: auto-reconnect WebSocket on server restart (#1071)
89e52e0 🤖 fix: resolve editor commands using shell PATH (#1073)
65826bc 🤖 feat: change + to "+ New Project" button (#1075)
cae2563 🤖 feat: improve directory picker with keyboard navigation and path input (#1039)
aaf26a8 🤖 fix: prevent background process name collisions (#1070)
34895ca 🤖 feat: add visual feedback when terminating background processes (#1062)