docs(07-01): complete DKV backend foundation plan

- 07-01-SUMMARY.md: execution record with PDF parser analysis, regex deviation, DB push method
- STATE.md: plan counter advanced to 2/6, decisions added, session updated

.planning/STATE.md

@@ -2,15 +2,15 @@
 gsd_state_version: 1.0
 milestone: v1.0
 milestone_name: milestone
-status: completed
-stopped_at: Phase 7 context gathered
-last_updated: "2026-06-26T12:22:38.551Z"
-last_activity: 2026-06-25 -- Phase 06 complete (CI green, AppImage built)
+status: executing
+stopped_at: Phase 07 Plan 01 complete
+last_updated: "2026-06-26T17:36:00.000Z"
+last_activity: 2026-06-26 -- Phase 07 Plan 01 completed (DKV backend foundation)
 progress:
   total_phases: 7
   completed_phases: 5
-  total_plans: 24
-  completed_plans: 23
+  total_plans: 30
+  completed_plans: 24
   percent: 71
 ---
 
@@ -21,14 +21,14 @@ progress:
 See: .planning/PROJECT.md (updated 2026-06-18)
 
 **Core value:** Eine zentrale Plattform, in der beliebige Workflow-Tools als Module lizenziert, aktiviert und genutzt werden koennen -- ohne zwischen verschiedenen Anwendungen wechseln zu muessen.
-**Current focus:** Phase 06 — desktop-client-ci-cd
+**Current focus:** Phase 07 — dkv-fleet-module
 
 ## Current Position
 
-Phase: 06 (desktop-client-ci-cd) — COMPLETE
-Plan: 3 of 3
-Status: All plans complete
-Last activity: 2026-06-25 -- Phase 06 complete (CI green, AppImage built)
+Phase: 07 (dkv-fleet-module) — EXECUTING
+Plan: 2 of 6
+Status: Executing Phase 07 (Plan 01 complete)
+Last activity: 2026-06-26 -- Phase 07 Plan 01 completed (DKV backend foundation)
 
 Progress: [██████████] 100%
 
@@ -96,6 +96,9 @@ Recent decisions affecting current work:
 - [Phase ?]: Plain docker compose build statt build-push-action (Gitea JWT Pitfall 4)
 - [Phase ?]: Ephemeral runner mode (GITEA_RUNNER_EPHEMERAL=1) fuer Credential-Revokation pro Job
 - [Phase ?]: Separate docker-compose.ci.yml fuer opt-in CI-Infrastruktur
+- [07-01]: DKV PDF uses two extraction formats: single-tx (tab-separated) vs multi-tx (columnar) — both handled in DkvParserService
+- [07-01]: Research Pattern 4 regex replaced with empirical dual-format tab/columnar parser after testing against real invoice.pdf
+- [07-01]: CalendarCryptoService exported from CalendarModule for DKV credential encryption reuse
 
 ### Pending Todos
 
@@ -115,6 +118,6 @@ Items acknowledged and carried forward from previous milestone close:
 
 ## Session Continuity
 
-Last session: 2026-06-26T12:22:38.543Z
-Stopped at: Phase 7 context gathered
-Resume file: .planning/phases/07-dkv-fleet-module/07-CONTEXT.md
+Last session: 2026-06-26T17:36:00.000Z
+Stopped at: Phase 07 Plan 01 complete (DKV backend foundation)
+Resume file: .planning/phases/07-dkv-fleet-module/07-02-PLAN.md