feat: initial work on elasticsearch integration

Signed-off-by: Zomatree <me@zomatree.live>

crates/core/search/Cargo.toml

@@ -0,0 +1,18 @@
+[package]
+name = "revolt-search"
+version = "0.11.5"
+edition = "2024"
+license = "MIT"
+publish = false
+
+[dependencies]
+revolt-config = { version = "0.11.5", path = "../config" }
+revolt-database = { version = "0.11.5", path = "../database" }
+revolt-models = { version = "0.11.5", path = "../models" }
+elasticsearch = "9.1.0-alpha.1"
+serde_json = "1"
+ulid = "1.2.1"
+iso8601-timestamp = { version = "0.2.10", features = ["serde", "bson"] }
+futures = "0.3.32"
+elasticsearch-dsl = "0.4"
+serde = "1"