Trusty: provenance library workspace (initial import)

crates/extensions/trusty-sqlite-ext/tests/smoke.rs

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+// ============================================================
+// Smoke test for trusty-sqlite-ext.
+//
+// A loadable SQLite extension is only meaningfully exercised by
+// actually dlopen'ing the built .dll / .so from a host SQLite
+// binary — that is out of scope for `cargo test`. Here we settle
+// for a compile-time smoke test: if this file builds, the cdylib
+// has linked and exports are resolvable by name.
+// ============================================================
+
+#[test]
+fn extension_builds_as_cdylib() {
+    // Intentionally trivial. The real verification is:
+    //   cargo build -p trusty-sqlite-ext
+    // producing target/debug/trusty_sqlite_ext.dll with
+    // sqlite3_trustysqliteext_init exported.
+    assert!(true);
+}