Function compile_mindstate 

pub fn compile_mindstate(
    request: &str,
    repo_context: &str,
    basis_version_id: &str,
    evidence: Vec<EvidenceItem>,
    store: &ForgeStore,
    config: &ForgeConfig,
    config_overrides: BTreeMap<String, String>,
) -> ForgeResult<MindState>

Compile a MindState from inputs using a BasisVersion.

Pulls evidence from semantic-memory handle (read-only). Injects answer traces for novelty context.