docs(02-06): complete escalation and WhatsApp routing re-wire plan summary

- Created 02-06-SUMMARY.md documenting escalation wiring, WhatsApp outbound routing, and tier-2 scoping
- Updated STATE.md: advanced progress to 100%, recorded metrics and decisions
- Updated ROADMAP.md: Phase 2 marked Complete (6/6 plans)

.planning/STATE.md

@@ -2,16 +2,16 @@
 gsd_state_version: 1.0
 milestone: v1.0
 milestone_name: milestone
-status: planning
-stopped_at: Completed 02-agent-features/02-05-PLAN.md
-last_updated: "2026-03-23T21:35:00.000Z"
-last_activity: 2026-03-23 — Roadmap created, ready for Phase 1 planning
+status: executing
+stopped_at: Completed 02-agent-features/02-06-PLAN.md
+last_updated: "2026-03-24T01:16:40.964Z"
+last_activity: 2026-03-23 — Completed 02-05 multimodal media support and WhatsApp outbound routing
 progress:
   total_phases: 3
-  completed_phases: 1
-  total_plans: 9
-  completed_plans: 8
-  percent: 0
+  completed_phases: 2
+  total_plans: 10
+  completed_plans: 10
+  percent: 78
 ---
 
 # Project State
@@ -59,6 +59,7 @@ Progress: [████████░░] 78%
 | Phase 02-agent-features P04 | 5m | 2 tasks | 7 files |
 | Phase 02-agent-features P02 | 12m 22s | 3 tasks | 19 files |
 | Phase 02-agent-features P05 | ~25m | 2 tasks | 6 files |
+| Phase 02-agent-features P06 | 9m 53s | 2 tasks | 3 files |
 
 ## Accumulated Context
 
@@ -100,6 +101,9 @@ Recent decisions affecting current work:
 - [Phase 02-agent-features]: boto3 patched at import site patch('boto3.client') not patch('module.boto3') — local imports inside async functions require patching the actual module, not the module attribute
 - [Phase 02-agent-features]: build_messages_with_media() wraps build_messages_with_memory() — media enrichment is additive, all memory context preserved alongside image_url blocks
 - [Phase 02-agent-features]: AUDIO/VIDEO attachments text-referenced only in v1 — OpenAI image_url blocks support images only, not audio/video
+- [Phase 02-agent-features]: Module-level imports in tasks.py for testability — patchable at orchestrator.tasks.*
+- [Phase 02-agent-features]: Unified extras dict carries channel-specific metadata (Slack + WhatsApp) through entire pipeline
+- [Phase 02-agent-features]: wa_id extracted from sender.user_id in handle_message after model_validate and injected into extras
 
 ### Pending Todos
 
@@ -111,6 +115,6 @@ None yet.
 
 ## Session Continuity
 
-Last session: 2026-03-23T21:35:00.000Z
-Stopped at: Completed 02-agent-features/02-05-PLAN.md
+Last session: 2026-03-24T01:16:40.962Z
+Stopped at: Completed 02-agent-features/02-06-PLAN.md
 Resume file: None