Run relationship worker only for queued work

[RANGROO]

Summary

• remove relationship-worker startup checks from foreground prompt construction
• start the detached worker only after an evaluation or NPC initialization is successfully queued
• apply RELATIONSHIP_UPDATE_CHANCE before listener and database context work
• reuse the relationship map already loaded for prompt filtering
• remove per-iteration idle trace writes while preserving Dialectic's initialization queue

Why

context_pre.php checked or launched the worker on every relationship-enabled prompt. The daemon also appended two raw trace lines every two seconds while idle, and prompt context could read the same relationship map twice.

Dialectic compatibility

• keeps _relProcessInitQueue(5) in every worker batch
• starts the worker for both evaluation and initialization jobs
• no schema migration, version bump, client change, or relationship-data conversion change
• adapts the foreground efficiency work from HerikaServer PR #725 without copying its retired-initialization removal

Validation

• PHP lint passed for all five changed PHP files
• focused PHPUnit: 12 tests, 56 assertions
• git diff --check
• deployed source/runtime SHA-256 hashes match for all four runtime files
• deployed runtime PHP lint passed for all four runtime files
• clean prompt-context probe: 0.862 ms, no PID file, and no worker process
• on-demand worker-start probe with empty queues: 18.974 ms
• idle worker log growth: 0 bytes over five seconds
• DialecticServer deployment health returned HTTP 200
• Apache write access passed for preserved voice and PipVision capture directories

Performance

The prompt hot path no longer performs process/PID checks and now reads relationship state once. The worker no longer writes roughly 3,600 idle trace lines per hour. The reviewable diff is 296 changed lines across five files; most of the movement relocates the existing cross-platform launcher from prompt context to the queue.

Local deployment

Deployed exact commit 10224efb6b2d6528dca88fc736e54f3e520ca6b0 from the feature worktree to DwemerAI4Skyrim3:/var/www/html/DialecticServer. Configuration, logs, caches, backups, uploads, databases, voice samples, and the unchanged game client were preserved.

Limits

• no in-game conversation was run
• no live Relationship LLM evaluation or real initialization job was submitted; both queues were confirmed empty before the worker-start probe