docs(05-02): complete bank-decoupling plan — SUMMARY, STATE, ROADMAP updated

.planning/STATE.md

@@ -2,15 +2,15 @@
 gsd_state_version: 1.0
 milestone: v1.1
 milestone_name: Custom Sound Mappings
-status: executing
-stopped_at: Completed 05-01-PLAN.md
-last_updated: "2026-03-26T16:35:44.333Z"
+status: verifying
+stopped_at: Completed 05-02-PLAN.md
+last_updated: "2026-03-26T16:39:38.288Z"
 last_activity: 2026-03-26
 progress:
   total_phases: 3
-  completed_phases: 0
+  completed_phases: 1
   total_plans: 2
-  completed_plans: 1
+  completed_plans: 2
   percent: 0
 ---
 
@@ -27,7 +27,7 @@ See: .planning/PROJECT.md (updated 2026-03-26)
 
 Phase: 05 (waveform-types-and-bank-decoupling) — EXECUTING
 Plan: 2 of 2
-Status: Ready to execute
+Status: Phase complete — ready for verification
 Last activity: 2026-03-26
 
 Progress: [░░░░░░░░░░] 0%
@@ -51,6 +51,7 @@ Progress: [░░░░░░░░░░] 0%
 
 **Recent Trend:** Stable
 | Phase 05 P01 | 3min | 2 tasks | 3 files |
+| Phase 05 P02 | 4 | 2 tasks | 4 files |
 
 ## Accumulated Context
 
@@ -61,6 +62,8 @@ Progress: [░░░░░░░░░░] 0%
 - [v1.1 Roadmap]: User class name collision with built-in TrafficClass strings is an unresolved design question — decide before coding Phase 7 (treat as override vs. reject as ambiguous)
 - [Phase 05]: FreqConfig struct uses named field syntax for ClassFreqConfigs entries (required by WaveformType addition)
 - [Phase 05]: WaveformType zero value is WaveformCustom — all 14 existing ClassFreqConfigs entries retain hand-tuned harmonics without modification
+- [Phase 05]: NewBank accepts injected config map instead of reading ClassFreqConfigs global — injection seam for Phase 6 config loading
+- [Phase 05]: gainPerLayer computed as 1.0/float64(len(cfgs)) — correct for any class count, no-clip guarantee preserved
 
 ### Pending Todos
 
@@ -72,6 +75,6 @@ None.
 
 ## Session Continuity
 
-Last session: 2026-03-26T16:35:44.326Z
-Stopped at: Completed 05-01-PLAN.md
+Last session: 2026-03-26T16:39:38.281Z
+Stopped at: Completed 05-02-PLAN.md
 Resume file: None