feat(commands): show player stealth progress

design/log.md

@@ -2,6 +2,8 @@
 
 ## 2026-08-14
 
+- **Completion**: Completed US-003 with `/stealth progress`, live unsaved interval inclusion, configured target and remaining output, concise duration formatting, and unlocked usage guidance; verified the full Gradle build.
+- **Implementation**: Began US-003 with player-facing progress command and human-readable duration tests.
 - **Completion**: Completed US-001 with direct potion-drink effect attribution, monotonic elapsed-time accumulation, safe refresh and stop transitions, durable UUID progress, exact-once unlocking, and title plus chat presentation; verified the full Gradle build.
 - **Implementation**: Began US-001 with monotonic-clock progression tests and potion-cause event attribution.
 - **Completion**: Completed US-005 with validated eight-hour defaults and configurable messages, UUID-keyed immutable state, RFC 3339 timing metadata, safe invalid-record defaults, unknown-field preservation, atomic YAML replacement, periodic saves, and serialized off-thread persistence; verified the full Gradle build.

design/user-stories/us-003-check-personal-progress.md

@@ -2,7 +2,7 @@
 type: User Story
 title: "US-003: Check personal stealth progress"
 description: Show a player their accumulated qualifying invisibility time and stealth unlock status.
-status: backlog
+status: done
 ---
 
 # US-003: Check personal stealth progress
@@ -11,13 +11,17 @@ As a **player**, I want to check my stealth progress so that I know how close I
 
 ## Acceptance criteria
 
-- [ ] `/stealth progress` reports the player's accumulated qualifying invisibility time.
-- [ ] Before unlock, the command reports the configured target and remaining duration.
-- [ ] While a qualifying effect is active, the report includes elapsed time not yet written during the current tracking interval.
-- [ ] After unlock, the command clearly reports that stealth is unlocked and explains how to prepare a concealed login.
-- [ ] Durations are presented in a concise, human-readable form.
-- [ ] Repeated command use does not change progression or concealment state.
-- [ ] The command has clear usage metadata and an appropriate player permission.
+- [x] `/stealth progress` reports the player's accumulated qualifying invisibility time.
+- [x] Before unlock, the command reports the configured target and remaining duration.
+- [x] While a qualifying effect is active, the report includes elapsed time not yet written during the current tracking interval.
+- [x] After unlock, the command clearly reports that stealth is unlocked and explains how to prepare a concealed login.
+- [x] Durations are presented in a concise, human-readable form.
+- [x] Repeated command use does not change progression or concealment state.
+- [x] The command has clear usage metadata and an appropriate player permission.
+
+## Validation
+
+Automated tests verify concise duration formatting, live in-flight progress, configured target and remaining output, command non-mutation, and unlocked usage guidance. Command metadata and the complete `./gradlew clean check jar` lifecycle pass.
 
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