desktop/src-tauri/crates/core/src/adapters/hermes/detect.rs

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//! Hermes detection: state.db tables/columns/primary-key shape,

//! not schema_version alone; select through the registry.

//!

//! Rules: architecture.md#unknown-version / adapters.md local Hermes layout.

//! - Missing sessions/session_model_usage tables or key columns: unknown format, reject.

//! - Complete columns but primary key lacks task, pre-v22: reject pending verification.

//!   Upstream _migrate_v22_session_model_usage rebuilds it when opening;

//!   this collector never runs source migrations/repairs.

//! - Both tables empty, such as unused installations: Pending, detect again next run.

//! - Native 0.21.5 samples exist, but database migration versions do not identify every row.

//!   Registry stays empty; all versions use marked LatestFallback.

/// Detect state.db and select the registered implementation.