bug fixes, windows build

crates/pstr-meta/Cargo.toml

@@ -14,6 +14,9 @@ serde.workspace = true
 serde_json.workspace = true
 thiserror.workspace = true
 tracing.workspace = true
+# The per-platform keystore feature comes from `pstr-core` above — cargo unifies
+# it across the graph, and `pstr-core` is a hard dependency here. Do not enable
+# `keyring` without it: the feature-less build resolves to the `mock` store.
 keyring.workspace = true
 # Same feature set as the SDK's, deliberately: two reqwest configurations in one
 # binary means two TLS stacks linked into it.