OpenPI 0.4.0

What's Changed

• feat: polish OpenPI UI and stabilize delegate tools by @tt-a1i in #52
• feat(ui): dock pickers above the input and unify subagent status chrome by @tt-a1i in #53
• feat(ui): quieter tool lines and relative paths in subagent transcripts by @tt-a1i in #54
• feat(ui): spin the running state and quiet the spawn marker by @tt-a1i in #55
• feat(ui): drop cost from the default footer layout by @tt-a1i in #56
• feat(ui): breathe around docked pickers and declutter status glyphs by @tt-a1i in #57
• feat(ui): small unicode icons for footer metrics by @tt-a1i in #58
• feat(ui): aggregate the subagent strip when several runs are active by @tt-a1i in #59
• fix: review batch — docs intent words, subagent watchdog, bin cache, workflow reader unification by @tt-a1i in #60
• docs: define local development runtime workflow by @tt-a1i in #65
• feat(user-input-fold): 超长用户输入在 transcript 里折叠显示 by @tt-a1i in #42
• feat(git-read): read-only git_show/git_diff/git_log as child-safe tools by @tt-a1i in #66
• feat(ui): 紧凑语义工具活动行 by @tt-a1i in #68
• feat(ui): spinner and check glyphs for workflow status chrome by @tt-a1i in #77
• ci: deduplicate pull request runs by @tt-a1i in #78
• feat(ui): color edit stats and spin the pending activity row by @tt-a1i in #79
• feat(ui): launch marker for the subagent spawn card by @tt-a1i in #80
• feat(ui): drop the live tool name from subagent picker rows by @tt-a1i in #81
• feat(input): highlight capability authorization keywords by @tt-a1i in #83
• perf(subagents): bound the spawn tool schema by @tt-a1i in #85
• fix(subagents): preserve short ids across reloads by @tt-a1i in #86
• fix(ui): mute completed tool activity by @tt-a1i in #88
• fix(subagents): preserve recoverable long results by @tt-a1i in #89
• feat(workflows): release parent turns and harden large fan-out by @tt-a1i in #92
• fix(workflows): expose call capacity in sandbox usage by @tt-a1i in #94
• chore(release): 0.4.0 by @tt-a1i in #95
• feat(ui): refine the default footer hierarchy by @tt-a1i in #98

Full Changelog: v0.3.1...v0.4.0