feat(stage): complete phase 20b action plans

docs/architecture/tech_debt_and_optimizations.md

@@ -92,6 +92,10 @@ This document tracks known technical debt, optimization opportunities, and minor
 | 80  | **Stickman panel nodes currently own both document shapes and local view state** — rebuilding a panel for a focused layout would reset selection, zoom, and pan and risk save/preview drift. | Medium | Spec prepared; implementation pending | Move the same ten BodyPartPanel instances between Overview and Focus hosts, retain one permanent WholeStickmanPreview sibling, and defer switching while a drag or popup is active. The controller owns session-only view choice and active part; manually chosen views survive resize, and narrow Overview remains scrollable. A future document-model extraction is warranted only if new editor features make live-node ownership limiting. See `docs/specs/editor_visual_harmonization.md`. (2026-10-23) |
 | 81  | **Stickman authored transforms lack a complete dirty-state boundary** — preview translation emits `part_moved`, while rotation and scale currently have no commit signal; Save/Load/Clear do not track unsaved work. | Medium | Spec prepared; implementation pending | Add a controller-observable transform commit path for position, rotation, and scale, plus `_dirty`/`_current_path` and Save/Discard Changes/Cancel transactions for replacement and close. Keep Overview/Focus, guide, grid, selection, and zoom/pan as session UI state that never marks dirty. Preserve the `.stk` format. See `docs/specs/editor_visual_harmonization.md`. (2026-10-23) |
 | 82  | **Phase 20a introduces persistent stage identity alongside temporary save IDs** — props already use persistent `stage_object_id`, while stickmen currently depend on runtime instance IDs and each save regenerates `file_id` by World order. | Medium | Spec prepared; implementation pending | Keep `file_id` for the current rule remap, retain existing prop IDs, and add a persistent character ID plus scene-unique display names independent of assets. Migrate legacy character IDs deterministically from their pre-migration `file_id`; preserve IDs and names through missing-asset placeholders. A scene-scoped World scan for name allocation is simpler than a mutable registry at current scene sizes. Phase 20b–20e may consume these IDs for authored links; this spec does not implement those links. See `docs/specs/phase_20a_stage_identities_and_names.md`. (2026-10-25) |
+| 83  | **Phase 20b needs persistent action identity and a plan migration across flat queue callers** — current integer IDs regenerate at load/PLAY, and flat encoders strip unknown action fields. | High | Spec prepared; implementation pending | Save v1.9 nested steps and scene-unique string action IDs; derive deterministic IDs from actor ID and flat index for older scenes. Keep IDs across edit/reorder/regroup/retarget, regenerate on actor duplication, and validate current-format collisions before World apply. Adapt queue/editor/visual/rule callers through typed plan APIs and a derived flat compatibility view; never persist session integer IDs or use stage names as keys. The v1.8 `speak.keep_acting` overlap may require a narrow legacy-only execution flag when it cannot become a compatible Move/Wait+Say step. See `docs/specs/phase_20b_action_plans_and_direct_authoring.md`. (2026-10-26) |
+| 84  | **Live named-prop pursuit can churn navigation or finish at a stale point** — a rigid prop can translate and spin while an authored Move runs. | Medium | Spec prepared; tuning pending | Store a world-aligned offset from the stable prop ID, retarget only for meaningful translation without restarting gait, and cap unpaused pursuit time. Check both current approach arrival and live prop reach before success; a missing target, blocked route, invalid projection, or timeout fails and emits no reached-endpoint event. Initial 16-unit/0.1-second retarget and 12-second budget values are tuning candidates for repeatable behavior and rendered checks, not permanent schema fields. Future Follow has a separate continuing stop contract. See `docs/specs/phase_20b_action_plans_and_direct_authoring.md`. (2026-10-26) |
+| 85  | **A just-set-down prop can be bumped by the releasing stickman during the next queued move** — the actor may still be beside the new placement when the following action begins. | Low | Implemented; 57 focused runtime checks pass | Set Down alone adds a temporary collision exception for the releasing rig, and that rig's movement sweep skips the prop until its collision shapes remain clear by 24 px for two physics frames. Keep the authored released flags, support contact, and all other actors' contacts unchanged; Drop, Throw, and ragdoll release receive no grace. This deliberately revises Phase 17a's earlier no-owner-grace rule to protect the immediate Set Down → Move sequence. See `docs/specs/phase_17a_prop_roles.md`. (2026-11-02) |
+| 86  | **A stickman can bump a reserved pickup target while approaching it** — normal collision handling can move the prop before the reach completes. | Low | Implemented; 68 focused runtime checks pass | Keep a pair-specific exception for the reserving actor and target throughout approach/reach. Successful pickup clears it through the HELD collision profile; cancel/failure changes it to clearance grace. The target retains support and contact with every other actor and prop. See `docs/specs/phase_17a_prop_roles.md`. (2026-11-02) |
 
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@@ -197,4 +201,10 @@ This document tracks known technical debt, optimization opportunities, and minor
 
 | 2026-10-25 | Prepared the Phase 20a identities, names, and overlap-selection architecture specification (`docs/specs/phase_20a_stage_identities_and_names.md`) for user sign-off. It specifies persistent character/prop IDs and scene-unique names alongside the existing temporary rule `file_id`, deterministic legacy migration to scene v1.8, shared EDIT name inspectors, and a visible-geometry click check with a transient overlap preview. Updated open #12 for the bounded character/prop precision plan and added #82 for the identity and migration trade-off. No runtime code or tests changed. |
 
+| 2026-10-26 | Prepared the Phase 20b Step Stack UI/architecture specification (`docs/specs/phase_20b_action_plans_and_direct_authoring.md`) for final user sign-off. It records the approved Move/Wait+Say compatibility, explicit free-place versus named-prop links, finite world-aligned moving-prop pursuit, future-only paused regroup/reorder, scene v1.9 plan/action-ID migration, runtime group barrier, and three verification gates. Added #83–#84 for the flat-queue compatibility and pursuit tuning trade-offs. No implementation code or tests changed. |
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+| 2026-11-02 | Revised Phase 17a's Set Down release rule for the reported Set Down → Move collision: only the releasing rig receives a contact exception, held until its collision shapes clear the prop by 24 px for two physics frames. The exception also applies to that rig's movement sweep, and the prop retains its authored collision role with supports and other actors. Added #85; `test_phase17a_prop_roles.gd` passes 57 runtime checks. |
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+| 2026-11-02 | Added reserved-pickup collision protection: the pickup target remains exempt only for its reserving rig through approach and reach, then returns to normal contact on pickup or clearance after cancellation/failure. The existing locomotion sweep honors the same target-specific exemption. Added #86; `test_phase17a_prop_roles.gd` passes 68 focused runtime checks. |
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 _End of Log_