feat(gui): reorder, bypass and remove track inserts (phase 85)

docs/ROADMAP.md

@@ -1955,12 +1955,12 @@ Implemented: case-insensitive path/name search and All/LADSPA/VST2/VST3/CLAP fil
 Expose move up/down, remove and bypass with one undo step per action and safe prepared-plan adoption.
 
 ### Tasks and acceptance criteria
-- [ ] Implement the described workflow with validated errors and safe ownership.
-- [ ] Pass relevant core and/or GUI tests.
-- [ ] Document behavior and limitations; commit this phase separately.
+- [x] Implement the described workflow with validated errors and safe ownership.
+- [x] Pass relevant core and/or GUI tests.
+- [x] Document behavior and limitations; commit this phase separately.
 
 ### Implementation status
-Planned.
+Implemented: selected insert Up/Down, bypass and removal, preserving effect metadata and selection on reorder. Every successful edit prepares a candidate and records one undo step. Focused GUI checks cover boundary rejection, order, bypass, removal/undo and saved chain reload; warning-enabled build passed.
 
 ---
 

docs/TRACK_INSERTS.md

@@ -39,3 +39,8 @@ The library searches configured Preferences paths recursively (including VST3
 bundle contents), with case-insensitive search and format filters. LADSPA and
 VST2 both use `.so`, so those filters share candidates until inspection identifies
 the ABI. Listing files executes no plugin code. Only inspect trusted binaries.
+
+Select a slot in the rack, then use **Up**, **Down**, **Bypass** or **Remove**.
+The selection follows reordered effects. Bypassed slots retain their settings
+and appear marked in the rack; their nodes are omitted from the compiled graph.
+Each successful operation creates one project undo step.