docs(07-01): complete config rule parsing and LoadResult plan

- Add 07-01-SUMMARY.md
- Advance STATE.md to plan 2 of 2, progress 83%
- Update ROADMAP.md: phase 7 in progress (1/2 summaries)
- Mark RULE-01, RULE-02, RULE-03 complete in REQUIREMENTS.md

.planning/STATE.md

@@ -3,14 +3,14 @@ gsd_state_version: 1.0
 milestone: v1.1
 milestone_name: Custom Sound Mappings
 status: executing
-stopped_at: Phase 7 context gathered
-last_updated: "2026-03-26T20:27:34.725Z"
+stopped_at: Completed 07-01-PLAN.md
+last_updated: "2026-03-26T20:45:59.826Z"
 last_activity: 2026-03-26
 progress:
   total_phases: 3
   completed_phases: 2
-  total_plans: 4
-  completed_plans: 4
+  total_plans: 6
+  completed_plans: 5
   percent: 0
 ---
 
@@ -21,12 +21,12 @@ progress:
 See: .planning/PROJECT.md (updated 2026-03-26)
 
 **Core value:** Network traffic patterns are instantly recognizable as distinct sounds — a ping sounds different from HTTPS noise, which sounds different from a port scan.
-**Current focus:** Phase 06 — config-package-and-sound-overrides
+**Current focus:** Phase 07 — custom-rules-and-print-config
 
 ## Current Position
 
-Phase: 7
-Plan: Not started
+Phase: 07 (custom-rules-and-print-config) — EXECUTING
+Plan: 2 of 2
 Status: Ready to execute
 Last activity: 2026-03-26
 
@@ -53,6 +53,7 @@ Progress: [░░░░░░░░░░] 0%
 | Phase 05 P01 | 3min | 2 tasks | 3 files |
 | Phase 05 P02 | 4 | 2 tasks | 4 files |
 | Phase 06 P02 | 2 | 2 tasks | 3 files |
+| Phase 07 P01 | 3 | 1 tasks | 3 files |
 
 ## Accumulated Context
 
@@ -67,6 +68,8 @@ Progress: [░░░░░░░░░░] 0%
 - [Phase 05]: gainPerLayer computed as 1.0/float64(len(cfgs)) — correct for any class count, no-clip guarantee preserved
 - [Phase 06]: Option A for freqCfgs propagation: pass as parameter to runLiveMode/runPcapMode — cleaner data flow vs package-level var
 - [Phase 06]: config.Load positioned after BPF validation, before output path resolution — ensures fail-fast before any I/O (D-11)
+- [Phase 07]: addAutoFreqEntries runs before merge so [sounds.X] overrides apply to user-defined classes
+- [Phase 07]: LoadResult struct chosen over tuple return for config.Load() -- cleaner API contract for Plan 02 CLI wiring
 
 ### Pending Todos
 
@@ -78,6 +81,6 @@ None.
 
 ## Session Continuity
 
-Last session: 2026-03-26T20:27:34.717Z
-Stopped at: Phase 7 context gathered
-Resume file: .planning/phases/07-custom-rules-and-print-config/07-CONTEXT.md
+Last session: 2026-03-26T20:45:59.819Z
+Stopped at: Completed 07-01-PLAN.md
+Resume file: None