feat(cron::update) auto update git repo and update db index

backend/api_server/Cargo.toml

@@ -6,6 +6,7 @@ edition = "2021"
 [dependencies]
 macros = { path = "../macros" }
 constants = { path = "../constants" }
+markdown = { path = "../markdown" }
 chrono = { version = "0.4.38", features = ["serde", "alloc"] }
 tracing = "0.1.40"
 tracing-subscriber = { version = "0.3.18", features = ["env-filter", "fmt"] }
@@ -19,6 +20,6 @@ serde = { version = "1.0.199", features = ["derive"] }
 serde_json = "1.0.128"
 uuid = { version = "1.10.0", features = ["v4", "fast-rng", "serde"] }
 futures = { version = "0.3.30", features = ["executor"] }
-sha2 = "0.10.8"
-cron = "0.12.1"
+cron = "0.13.0"
 git2 = "0.19.0"
+thiserror = "2.0.3"