Fix local startup schema parsing

schema.sql

@@ -1014,7 +1014,7 @@ CREATE TABLE IF NOT EXISTS h5_blocked_words (
 
 -- Shared experience store (etat C): all goosed Worker instances read/write the
 -- same learned experience so capability is not siloed per instance. Built on
--- MySQL first with a keyword + recency retrieval; `embedding` is reserved for a
+-- MySQL first with keyword + recency retrieval. `embedding` is reserved for a
 -- later move to PostgreSQL + pgvector without changing the calling contract.
 CREATE TABLE IF NOT EXISTS h5_experience (
   id CHAR(36) PRIMARY KEY,
@@ -1026,7 +1026,7 @@ CREATE TABLE IF NOT EXISTS h5_experience (
   source_session_id VARCHAR(128) NULL,
   source_user_id CHAR(36) NULL,
   use_count BIGINT NOT NULL DEFAULT 0,
-  embedding JSON NULL,
+  `embedding` JSON NULL,
   created_at BIGINT NOT NULL,
   updated_at BIGINT NOT NULL,
   KEY idx_h5_experience_scope_updated (scope, updated_at),