Function ensure_required_providers

crates/openshell-cli/src/run.rs:3703–3809

Ensure all required providers exist. `explicit_names` are provider **names** supplied via `--provider`. They are passed through directly; the server validates they exist at sandbox creation. `inferred_types` are provider **types** inferred from the trailing command (e.g. `claude` -> type `"claude-code"`). These are resolved to provider names via a type→name lookup, and missing types may be auto-

(
    client: &mut crate::tls::GrpcClient,
    explicit_names: &[String],
    inferred_types: &[String],
    auto_providers_override: Option<bool>,
)

/// Returns a deduplicated list of provider **names** suitable for
/// `SandboxSpec.providers`.
pub async fn ensure_required_providers(
    client: &mut crate::tls::GrpcClient,
    explicit_names: &[String],
    inferred_types: &[String],
    auto_providers_override: Option<bool>,
) -> Result<Vec<String>> {
    if explicit_names.is_empty() && inferred_types.is_empty() {
        return Ok(Vec::new());
    }

    let mut configured_names: Vec<String> = Vec::new();
    let mut seen_names: HashSet<String> = HashSet::new();

    // ── Fetch all existing providers ─────────────────────────────────────
    // Build both a name set (for explicit --provider lookups) and a
    // type-to-name map (for inferred provider resolution).
    let mut known_names: HashSet<String> = HashSet::new();
    let mut type_to_name: HashMap<String, String> = HashMap::new();
    {
        let mut offset = 0_u32;
        let limit = 100_u32;
        loop {
            let response = client
                .list_providers(ListProvidersRequest { limit, offset })
                .await
                .into_diagnostic()?;
            let providers = response.into_inner().providers;
            for provider in &providers {
                known_names.insert(provider.object_name().to_string());
                if !provider.r#type.is_empty() {
                    let type_lower = provider.r#type.to_ascii_lowercase();
                    type_to_name
                        .entry(type_lower)
                        .or_insert_with(|| provider.object_name().to_string());
                }
            }
            if providers.len() < limit as usize {
                break;
            }
            offset = offset.saturating_add(limit);
        }
    }

    // ── Explicit provider names ──────────────────────────────────────────
    // If the name exists on the server, use it directly. Otherwise, if the
    // name matches a known provider type, auto-create a provider of that
    // type with the requested name.
    for name in explicit_names {
        if known_names.contains(name) {
            if seen_names.insert(name.clone()) {
                configured_names.push(name.clone());
            }
        } else if let Some(provider_type) = normalize_provider_type(name) {
            auto_create_provider(
                client,
                provider_type,
                Some(name),
                auto_providers_override,