feat(quests): show custom reward item names

knowledge/log.md

@@ -112,3 +112,10 @@ description: Chronological record of material decisions affecting Spigot Quest B
 - Kept listing, completion, cancellation, and claiming commands disabled under that setting while preserving global command behavior when enabled.
 - Enforced same-world Euclidean proximity with an inclusive five-block boundary for custom and generated boards.
 - Verified 121 tests and the plugin JAR with `./gradlew clean check jar`.
+
+## 2026-09-05 — Named reward identification
+
+- Displayed custom reward names together with their material type in shared board details and command listings, such as `1 × Shopping List (PAPER)`.
+- Stored safe plain-text custom names alongside unchanged exact item metadata and inferred names from valid historical escrow data when possible.
+- Kept malformed or unavailable metadata from blocking quest browsing by falling back to material descriptions.
+- Verified 128 tests and the plugin JAR with `./gradlew clean check jar`.

knowledge/user-stories/index.md

@@ -18,3 +18,4 @@ description: Catalog of user stories for the Spigot Quest Board plugin.
 10. [US-010: Generate a physical quest-board structure](us-010-generate-a-physical-quest-board.md)
 11. [US-011: Add readable physical-board signage](us-011-add-readable-physical-board-signage.md)
 12. [US-012: Create quests by command near a board](us-012-create-quests-near-a-board.md)
+13. [US-013: Show custom reward item names](us-013-show-custom-reward-item-names.md)

knowledge/user-stories/us-004-browse-available-quests.md

@@ -23,3 +23,4 @@ As a **player**, I want to browse current quests so that I can decide which bloc
 
 - [US-002: Create and use shared quest boards](us-002-create-and-use-shared-quest-boards.md)
 - [US-005: Deliver blocks and complete a quest](us-005-deliver-blocks-and-complete-a-quest.md)
+- [US-013: Show custom reward item names](us-013-show-custom-reward-item-names.md)

knowledge/user-stories/us-013-show-custom-reward-item-names.md

@@ -0,0 +1,26 @@
+---
+type: User Story
+title: "US-013: Show custom reward item names"
+description: Display a reward item's custom name together with its material type when browsing quests.
+status: done
+---
+
+# US-013: Show custom reward item names
+
+As a **player**, I want named reward items identified by both custom name and material so that I understand exactly what a quest will award.
+
+## Acceptance criteria
+
+- [x] A reward with a custom display name is shown as amount, readable custom name, and material type, such as `1 × Shopping List (PAPER)`.
+- [x] An unnamed reward continues to show its amount and material type, such as `3 × DIAMOND`.
+- [x] Styled custom names are converted to safe readable plain text without changing the escrowed item's exact metadata.
+- [x] Quest-board detail dialogs and `/quests` listings use the same reward representation.
+- [x] Newly escrowed rewards persist the readable custom name alongside their exact serialized item data.
+- [x] Existing persisted named rewards derive their custom name from valid stored item metadata when possible.
+- [x] Missing, malformed, or unreadable item metadata safely falls back to the material type without preventing quest browsing.
+- [x] Automated tests verify named, unnamed, styled, persisted, historical, and malformed reward metadata.
+
+## Related
+
+- [US-003: Create a block-delivery quest](us-003-create-a-block-delivery-quest.md)
+- [US-004: Browse available quests](us-004-browse-available-quests.md)