feat: ship one-tap feature handoffs

docs/ROADMAP.md

@@ -58,21 +58,25 @@ Potential features:
 - Required vs optional features
 - Release readiness view
 
-## v0.4 — Session Prompt Generator
+## v0.4 — Handoff Workflow Hardening
 
 Goal:
-Generate clean prompts for AI coding agents.
+Turn a chosen feature into a sharp, target-specific AI coding brief with as little friction as possible.
 
-Potential features:
-- Start 30-minute session from feature
-- Generate Claude Code/Codex prompt
-- Include do-not-touch list
-- Include acceptance criteria
-- Include recent pulse context
-- End-session summary template
+Current shipped slices:
+- v0.3.1 — focused handoff shortcuts
+- v0.3.2 — target-specific handoff presets
+- v0.4.0 — one-tap feature handoffs
 
-Note:
-BuildPulse now has a lightweight export-side session prompt generator in v0.1.x so handoff quality improves before the fuller v0.4 workflow arrives.
+Planned slices:
+- v0.4.1 — preview/edit before copy + optional INTENT pulse controls
+- v0.4.2 — paste agent result into RESULT/BLOCKER/TEST_RESULT pulses
+- v0.4.3 — session modes (30-minute, feature-based, bugfix, QA review)
+
+Core rules:
+- Keep handoff generation close to the feature decision surface.
+- Include release/phase context, blockers, parking-lot warnings, and return format.
+- Do not add live execution, telemetry, router logic, or agent streaming in this phase.
 
 ## v0.5 — Local/Cloud AI Assistant