session-query/ — session retrieval capability family

Trusted exact reads over live and durable session logs. Phase one contains one interface package that owns ctx.sessionQuery, logical-corpus precedence, surface classification, and bounded event reads.

Package	Role	ctx key
`session-query/`	Logical-corpus and exact-event read service	`ctx.sessionQuery`

The family is independent of compaction: it reads the canonical session log but does not participate in compaction policy or execution. Full-text search remains proposed as a phase-two SQLite package rather than a speculative provider seam in this interface package.