Method load

src/hooks/tool_hints.rs:287–297

(path: &Path)

    }

    pub fn load(path: &Path) -> std::io::Result<Self> {
        let content = std::fs::read_to_string(path)?;
        // v2: {"version":2, "sessions":[...], "categories":[...]}. v1: a bare
        // array of {session_id, category}. Probe for the versioned object first,
        // then fall back to the legacy array so old files load losslessly.
        if let Ok(persisted) = serde_json::from_str::<PersistedHints>(&content) {
            return Ok(Self::from_persisted(persisted));
        }
        let entries: Vec<PersistedHintEntry> = serde_json::from_str(&content).unwrap_or_default();
        Ok(Self::from_v1_entries(entries))
    }

    fn from_v1_entries(entries: Vec<PersistedHintEntry>) -> Self {
        // A v1 entry records that the category was hinted once; it carries no