docs(01-foundation-03): complete storage layer plan — SUMMARY, STATE, ROADMAP, REQUIREMENTS updated

- 01-03-SUMMARY.md: AES-256-GCM + Argon2id + SQLite CRUD layer complete
- STATE.md: progress 20%, decisions logged, session updated
- ROADMAP.md: Phase 1 In Progress (1/5 summaries)
- REQUIREMENTS.md: STOR-01, STOR-02, STOR-03 marked complete

.planning/STATE.md

@@ -1,3 +1,19 @@
+---
+gsd_state_version: 1.0
+milestone: v1.0
+milestone_name: milestone
+status: planning
+stopped_at: Completed 01-foundation-03-PLAN.md
+last_updated: "2026-04-04T21:07:04.658Z"
+last_activity: 2026-04-04 — Roadmap created, 18 phases defined covering 146 v1 requirements
+progress:
+  total_phases: 18
+  completed_phases: 0
+  total_plans: 5
+  completed_plans: 1
+  percent: 20
+---
+
 # Project State
 
 ## Project Reference
@@ -14,11 +30,12 @@ Plan: 0 of ? in current phase
 Status: Ready to plan
 Last activity: 2026-04-04 — Roadmap created, 18 phases defined covering 146 v1 requirements
 
-Progress: [░░░░░░░░░░░░░░░░░░░░] 0%
+Progress: [██░░░░░░░░] 20%
 
 ## Performance Metrics
 
 **Velocity:**
+
 - Total plans completed: 0
 - Average duration: —
 - Total execution time: 0 hours
@@ -30,10 +47,12 @@ Progress: [░░░░░░░░░░░░░░░░░░░░] 0%
 | - | - | - | - |
 
 **Recent Trend:**
+
 - Last 5 plans: —
 - Trend: —
 
 *Updated after each plan completion*
+| Phase 01-foundation P03 | 3 | 2 tasks | 7 files |
 
 ## Accumulated Context
 
@@ -46,6 +65,8 @@ Recent decisions affecting current work:
 - Roadmap: Per-source rate limiter architecture (Phase 9) must precede all OSINT source modules (Phases 10-16)
 - Roadmap: AES-256 encryption added in Phase 1, not post-hoc — avoids migration complexity
 - Roadmap: Verification (Phase 5) requires consent prompt + LEGAL.md — not optional polish
+- [Phase 01-foundation]: Storage 01-03: Argon2id selected over PBKDF2 — memory-hard RFC 9106 params, resolves STATE.md blocker
+- [Phase 01-foundation]: Storage 01-03: AES-256-GCM nonce prepended to ciphertext in single BLOB column — no separate nonce column needed
 
 ### Pending Todos
 
@@ -60,6 +81,6 @@ None yet.
 
 ## Session Continuity
 
-Last session: 2026-04-04
-Stopped at: Roadmap written to .planning/ROADMAP.md; ready to begin Phase 1 planning
+Last session: 2026-04-04T21:07:04.654Z
+Stopped at: Completed 01-foundation-03-PLAN.md
 Resume file: None