docs(14-03): complete Discogs routes plan

.planning/STATE.md

@@ -4,16 +4,16 @@ milestone: v1.0
 current_phase: 14
 current_phase_name: Domain jobs and external integrations
 status: executing
-stopped_at: Completed 14-02-PLAN.md
-last_updated: "2026-10-03T19:26:16.437Z"
+stopped_at: Completed 14-03-PLAN.md
+last_updated: "2026-10-03T20:25:22.551Z"
 last_activity: 2026-10-03
 last_activity_desc: Phase 14 execution started
-state_head: f22c9144e67b54b5b16275430f47ea46392581e4
+state_head: 5101ecb49cae4e1bcceecc91491c198175ce71c1
 progress:
   total_phases: 22
   completed_phases: 11
   total_plans: 118
-  completed_plans: 114
+  completed_plans: 115
 milestone_name: milestone
 ---
 
@@ -29,7 +29,7 @@ See: .planning/PROJECT.md (updated 2026-09-16)
 ## Current Position
 
 Phase: 14 (Domain jobs and external integrations) — EXECUTING
-Plan: 3 of 6
+Plan: 4 of 6
 Status: Ready to execute
 Last activity: 2026-10-03 — Phase 14 execution started
 
@@ -168,6 +168,7 @@ Progress: [██████░░░░] 60%
 | Phase 13 P06 | 70 min | 3 tasks | 59 files |
 | Phase 14 P01 | 25min | 5 tasks | 42 files |
 | Phase 14 P02 | 80 min | 4 tasks | 81 files |
+| Phase 14 P03 | 54min | 3 tasks | 122 files |
 
 ## Accumulated Context
 
@@ -514,6 +515,10 @@ Recent decisions affecting current work:
 - [Phase 14]: 14-02: digest worker mails only when its DELETE removed the queue row (once per window under races)
 - [Phase 14]: 14-02: reindex prefixes both the album and the legacy items index with search.prefix
 - [Phase 14]: 14-02: INTG-01 stays Pending until 14-03 mounts the Discogs routes
+- [Phase 14]: Parity over plan wording: a second identical apply re-imports covers and dry_run writes the covers and non-draft catalog fields, as PHP does
+- [Phase 14]: apply-release runs without an enclosing transaction, as PHP, so cover downloads never hold the album row lock
+- [Phase 14]: Discogs-route covers go through classes.NewGuardedCoverImporter (fetchguard.Client, GuzzleHttp/7 UA) so the replay answers them; Phase 12 cover imports deferred
+- [Phase 14]: discogs is an additive parity seed extra; A Love Supreme carries discogs_id 2002 with the album state
 
 ### Pending Todos
 
@@ -562,6 +567,6 @@ Items acknowledged and carried forward from previous milestone close:
 
 ## Session Continuity
 
-Last session: 2026-10-03T19:26:15.839Z
-Stopped at: Completed 14-02-PLAN.md
+Last session: 2026-10-03T20:25:22.043Z
+Stopped at: Completed 14-03-PLAN.md
 Resume file: None