ANW-11 vault scanner: walk, parse frontmatter, compute ETag

Cargo.lock

@@ -74,6 +74,7 @@ dependencies = [
  "anyhow",
  "axum",
  "blake3",
+ "chrono",
  "clap",
  "hydra",
  "notify",
@@ -81,12 +82,14 @@ dependencies = [
  "serde_json",
  "serde_yaml",
  "tantivy",
+ "tempfile",
  "thiserror",
  "tokio",
  "tower",
  "tower-http",
  "tracing",
  "tracing-subscriber",
+ "walkdir",
 ]
 
 [[package]]
@@ -322,6 +325,15 @@ version = "1.0.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "9330f8b2ff13f34540b44e946ef35111825727b38d33286ef986142615121801"
 
+[[package]]
+name = "chrono"
+version = "0.4.44"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c673075a2e0e5f4a1dde27ce9dee1ea4558c7ffe648f576438a20ca1d2acc4b0"
+dependencies = [
+ "num-traits",
+]
+
 [[package]]
 name = "clap"
 version = "4.6.1"