Implements the async-embedding pipeline's worker side:
- php/Jobs/EmbedMemory.php — Laravel Job that calls BrainService::embed()
+ qdrantUpsert() and sets indexed_at on success
- php/Migrations/…_add_indexed_at_to_brain_memories.php — nullable
timestamp + index, portable across pgsql/mariadb (hasColumn guard)
- BrainMemory: +indexed_at fillable + datetime cast + PHPDoc
- BrainService: qdrantUpsert() private→public so the Job can use it;
elasticIndex() stub added (to be implemented by the ES ticket)
- php/tests/Feature/Jobs/EmbedMemoryTest.php — Pest tests for success
path and Qdrant-failure path
Co-authored-by: Codex <noreply@openai.com>
Closes tasks.lthn.sh/view.php?id=56
Three related fixes so the brain DB works on Postgres, not just MariaDB:
1. config.php — brain charset/collation was hardcoded to utf8mb4 which
Postgres rejects as client_encoding. Now driver-aware: utf8 for
pgsql, utf8mb4 otherwise. Override via BRAIN_DB_CHARSET env var.
2. Migration 000008 (create_brain_memories) — self-referential FK on
supersedes_id was declared inside Schema::create{}, causing Postgres
to evaluate it before the PK index existed ('no unique constraint
matching given keys'). Split into Schema::create + separate
Schema::table to guarantee PK is in place when FK is added.
3. Migration 000009 (drop workspace FK) — try/catch inside the Blueprint
closure couldn't catch deferred SQL failures. Replaced with a
constraint-exists pre-query against information_schema, supporting
both pgsql and mariadb/mysql drivers. Fresh installs no longer fail
trying to drop a constraint that was never created.
Co-Authored-By: Virgil <virgil@lethean.io>
