Add lockGuild and the death-guild index for character-owned locks

[ryanbarlow97]

Stage 6a part A: the guild that character-owned GUILD and FACTION locks follow (design rule 8). Thievery calls it; the vehicle work is a separate PR.

API. SimpleFactionsApi.lockGuild(UUID characterId) -> Optional<Guild>:

• empty until SimpleFactionsApi.ready();
• ALIVE, including revived: FactionManager.getGuildByMember(characterId), the first match;
• DEAD: the live guild whose incarnation matches the death-guild index entry, otherwise empty;
• MISSING, deleted, unknown or directory-quarantined: empty.

Capture. DeathJournal gets a new optional field, lockGuildIncarnation. FactionDeaths.capture computes it from the live guilds before the snapshot loop, using the ungated String-key getGuildByMember, so deaths found by the boot reconcile still record their guild. For the rebel main guild of an active civil war:

• a move record whose origin resolves gives the origin guild;
• a move record whose origin is gone gives the host's main guild;
• no move record gives the guild's own incarnation;
• the wanted leader is recorded like any other moved member.

Index. CharacterDeaths.indexLockGuilds() runs in start() after CharacterDeaths.load/reconcile and before started = true. It groups journals by character and reads only the most recent by at; a tie gives no entry. Journals that have the field use it. Older journals use the first guilds[].members match in their rights snapshots, without civil-war mapping. Every capture updates the index, a guildless capture deletes the entry, and lookups never read from disk.

The change is additive. Stage 5 journals load and replay unchanged, which a test checks by stripping the field from a written journal. The version is now 4.1.0.

Validation. tfmc-mvn -o -B clean verify at bca3cba passed: 7,820 tests, 0 failures, 100% line coverage. New tests cover:

• alive, revived, dead, missing and unknown characters, and not ready;
• a disbanded and recreated guild giving no access;
• a twice-dead owner (guild death, revived, guildless death) with no entry, including after a restart;
• a boot-reconcile capture while not ready;
• first match for a member of two guilds;
• every civil-war case;
• backfill grouping and ties;
• a retried cleanup still updating the index.

I also mutation-checked the tests: switching capture to the UUID overload, dropping the civil-war mapping or not deleting on a guildless capture each fails them.

CI may fail with 404s for unreleased stage 5 and 6 dependencies until they are released.

Docs: TF-Minecraft/Docs#208

🤖 Generated with Claude Code

[coderabbitai]

📝 Summary

Summary by CodeRabbit

• New Features
  • Guilds associated with a character’s death can now be looked up, including after the character has died or been revived.
  • Death records preserve the relevant guild identity, helping guild and faction locks continue to follow the correct guild through disbanding, recreation and civil-war changes.

Death journals now store the guild incarnation associated with a character’s locks. A rebuilt and maintained index supports a new API lookup for the locked guild. Startup indexes journals after death reconciliation.

Changes: Character death guild locking

Layer / File(s)	Summary
Capture the death-time guild incarnation src/main/java/net/tfminecraft/simplefactions/identity/death/DeathJournal.java, src/main/java/net/tfminecraft/simplefactions/identity/death/FactionDeaths.java	Death journals record the guild incarnation associated with the character’s locks. Capture resolves the member’s guild and handles civil-war member moves.
Build and maintain the lock-guild index src/main/java/net/tfminecraft/simplefactions/identity/death/LockGuildIndex.java, src/main/java/net/tfminecraft/simplefactions/identity/death/CharacterDeaths.java, src/main/java/net/tfminecraft/simplefactions/identity/death/DeathJournalStore.java, src/main/java/net/tfminecraft/simplefactions/SimpleFactions.java, src/test/java/net/tfminecraft/simplefactions/identity/death/LockGuildIndexTest.java	The index selects each character’s latest unambiguous journal. Journal recording, reconciliation, startup and shutdown now update or clear the index.
Resolve the guild through the API src/main/java/net/tfminecraft/simplefactions/api/SimpleFactionsApi.java, src/test/java/net/tfminecraft/simplefactions/identity/death/LockGuildTest.java, pom.xml	lockGuild(UUID) resolves a living character through current membership and a dead character through the indexed guild incarnation. Tests cover lookup and recovery cases. The Maven project version changes to 4.1.0.

Priority: ➖ Normal

Estimated code review effort: 3 (Moderate) | ~25 minutes

Change: Feature

Sequence Diagram(s)

sequenceDiagram
  participant SimpleFactionsApi
  participant CharacterDeaths
  participant LockGuildIndex
  participant GuildIncarnations
  SimpleFactionsApi->>CharacterDeaths: Request lockGuildIncarnation(characterId)
  CharacterDeaths->>LockGuildIndex: Look up incarnation(characterId)
  LockGuildIndex-->>CharacterDeaths: Return optional incarnation
  CharacterDeaths-->>SimpleFactionsApi: Return optional incarnation
  SimpleFactionsApi->>GuildIncarnations: Match incarnation without case sensitivity
  GuildIncarnations-->>SimpleFactionsApi: Return matching guild or no match

Loading

Merge Risk: 🔵 Low · up to bca3c

Concurrent guild lookups may return inconsistent results during death reconciliation. Synchronise index access before merging, or accept this bounded risk.

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Actionable comments posted: 1

---

• 🪄 Fix CodeRabbit comments on this PR

🤖 Prompt to fix review comments

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Inline comments:
Review comments at
@src/main/java/net/tfminecraft/simplefactions/identity/death/CharacterDeaths.java:
- Around line 70-82: Synchronise all access to the LockGuildIndex map to prevent
concurrent reads and reconciliation writes. Make rebuild, capture, and get
synchronised methods, keeping their existing behaviour unchanged.

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ℹ️ Review info

⚙️ Run configuration

• Configuration used: Organization UI
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• Plan: Advanced
• Run ID: b2240bd4-4a00-4be1-ab11-b453c9746683

📥 Commits

Reviewing files that changed from the base of the PR and between e61a977 and bca3cba.

📒 Files selected for processing (10)

• pom.xml
• src/main/java/net/tfminecraft/simplefactions/SimpleFactions.java
• src/main/java/net/tfminecraft/simplefactions/api/SimpleFactionsApi.java
• src/main/java/net/tfminecraft/simplefactions/identity/death/CharacterDeaths.java
• src/main/java/net/tfminecraft/simplefactions/identity/death/DeathJournal.java
• src/main/java/net/tfminecraft/simplefactions/identity/death/DeathJournalStore.java
• src/main/java/net/tfminecraft/simplefactions/identity/death/FactionDeaths.java
• src/main/java/net/tfminecraft/simplefactions/identity/death/LockGuildIndex.java
• src/test/java/net/tfminecraft/simplefactions/identity/death/LockGuildIndexTest.java
• src/test/java/net/tfminecraft/simplefactions/identity/death/LockGuildTest.java

Included review availability: This review used your included allowance. Your plan provides up to 1 included review per hour; 0 remain after this review.

Stale: the only finding (LockGuildIndex synchronisation) was refuted in-thread with evidence; every index read and write runs on the main thread, and the thread is resolved.