docs(17-01): complete Telegram Bot package foundation plan

- Summary: telego bot skeleton with auth, rate limiting, 10 command stubs
- Updated STATE.md, ROADMAP.md, REQUIREMENTS.md

.planning/STATE.md

@@ -3,14 +3,14 @@ gsd_state_version: 1.0
 milestone: v1.0
 milestone_name: milestone
 status: executing
-stopped_at: Completed 16-01-PLAN.md
-last_updated: "2026-04-06T13:48:35.313Z"
+stopped_at: Completed 17-01-PLAN.md
+last_updated: "2026-04-06T14:28:54.411Z"
 last_activity: 2026-04-06
 progress:
   total_phases: 18
   completed_phases: 14
   total_plans: 85
-  completed_plans: 83
+  completed_plans: 84
   percent: 20
 ---
 
@@ -100,6 +100,7 @@ Progress: [██░░░░░░░░] 20%
 | Phase 15 P01 | 3min | 2 tasks | 13 files |
 | Phase 15 P03 | 4min | 2 tasks | 11 files |
 | Phase 16 P01 | 4min | 2 tasks | 6 files |
+| Phase 17 P01 | 3min | 2 tasks | 4 files |
 
 ## Accumulated Context
 
@@ -152,6 +153,7 @@ Recent decisions affecting current work:
 - [Phase 16]: VT uses x-apikey header per official API v3 spec
 - [Phase 16]: IX uses three-step flow: POST search, GET results, GET file content
 - [Phase 16]: URLhaus tag lookup with payload endpoint fallback
+- [Phase 17]: telego v1.8.0 promoted from indirect to direct; context cancellation for graceful shutdown; rate limit 60s scan/verify/recon, 5s others
 
 ### Pending Todos
 
@@ -166,6 +168,6 @@ None yet.
 
 ## Session Continuity
 
-Last session: 2026-04-06T13:46:09.383Z
-Stopped at: Completed 16-01-PLAN.md
+Last session: 2026-04-06T14:28:54.406Z
+Stopped at: Completed 17-01-PLAN.md
 Resume file: None