Add standardised SQL connection setup for microservices.

Cargo.lock

@@ -811,6 +811,12 @@ version = "3.20.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "5d20789868f4b01b2f2caec9f5c4e0213b41e3e5702a50157d699ae31ced2fcb"
 
+[[package]]
+name = "byteorder"
+version = "1.5.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1fd0f2584146f6f2ef48085050886acf353beff7305ebd1ae69500e27c67f64b"
+
 [[package]]
 name = "bytes"
 version = "1.11.1"
@@ -1060,6 +1066,41 @@ dependencies = [
  "cmov",
 ]
 
+[[package]]
+name = "darling"
+version = "0.21.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9cdf337090841a411e2a7f3deb9187445851f91b309c0c0a29e05f74a00a48c0"
+dependencies = [
+ "darling_core",
+ "darling_macro",
+]
+
+[[package]]
+name = "darling_core"
+version = "0.21.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1247195ecd7e3c85f83c8d2a366e4210d588e802133e1e355180a9870b517ea4"
+dependencies = [
+ "fnv",
+ "ident_case",
+ "proc-macro2",
+ "quote",
+ "strsim",
+ "syn",
+]
+
+[[package]]
+name = "darling_macro"
+version = "0.21.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d38308df82d1080de0afee5d069fa14b0326a88c14f15c5ccda35b4a6c414c81"
+dependencies = [
+ "darling_core",
+ "quote",
+ "syn",
+]
+
 [[package]]
 name = "data-encoding"
 version = "2.11.0"
@@ -1132,6 +1173,42 @@ dependencies = [
  "cipher",
 ]
 
+[[package]]
+name = "diesel"
+version = "2.3.8"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "78df0e4e8c596662edb07fbfbb7f23769cca35049827df5f909084d956b6aeaf"
+dependencies = [
+ "bitflags 2.11.1",
+ "byteorder",
+ "diesel_derives",
+ "downcast-rs",
+ "itoa",
+ "pq-sys",
+]
+
+[[package]]
+name = "diesel_derives"
+version = "2.3.8"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0b79402bd1cfb25b65650f0f4901d0e79c095729e2139c8ab779d025968c7099"
+dependencies = [
+ "diesel_table_macro_syntax",
+ "dsl_auto_type",
+ "proc-macro2",
+ "quote",
+ "syn",
+]
+
+[[package]]
+name = "diesel_table_macro_syntax"
+version = "0.3.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "fe2444076b48641147115697648dc743c2c00b61adade0f01ce67133c7babe8c"
+dependencies = [
+ "syn",
+]
+
 [[package]]
 name = "digest"
 version = "0.10.7"
@@ -1172,6 +1249,26 @@ version = "0.3.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "780955b8b195a21ab8e4ac6b60dd1dbdcec1dc6c51c0617964b08c81785e12c9"
 
+[[package]]
+name = "downcast-rs"
+version = "2.0.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "117240f60069e65410b3ae1bb213295bd828f707b5bec6596a1afc8793ce0cbc"
+
+[[package]]
+name = "dsl_auto_type"
+version = "0.2.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "dd122633e4bef06db27737f21d3738fb89c8f6d5360d6d9d7635dda142a7757e"
+dependencies = [
+ "darling",
+ "either",
+ "heck",
+ "proc-macro2",
+ "quote",
+ "syn",
+]
+
 [[package]]
 name = "dunce"
 version = "1.0.5"
@@ -1835,6 +1932,12 @@ dependencies = [
  "zerovec",
 ]
 
+[[package]]
+name = "ident_case"
+version = "1.0.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b9e0384b61958566e926dc50660321d12159025e767c18e043daf26b70104c39"
+
 [[package]]
 name = "idna"
 version = "1.1.0"
@@ -2330,6 +2433,12 @@ dependencies = [
  "spki 0.6.0",
 ]
 
+[[package]]
+name = "pkg-config"
+version = "0.3.33"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "19f132c84eca552bf34cab8ec81f1c1dcc229b811638f9d283dceabe58c5569e"
+
 [[package]]
 name = "polling"
 version = "2.8.0"
@@ -2390,6 +2499,17 @@ dependencies = [
  "zerocopy",
 ]
 
+[[package]]
+name = "pq-sys"
+version = "0.7.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "574ddd6a267294433f140b02a726b0640c43cf7c6f717084684aaa3b285aba61"
+dependencies = [
+ "libc",
+ "pkg-config",
+ "vcpkg",
+]
+
 [[package]]
 name = "proc-macro2"
 version = "1.0.106"
@@ -3104,6 +3224,7 @@ dependencies = [
  "anyhow",
  "aws-config",
  "aws-sdk-s3",
+ "diesel",
  "futures-util",
  "lapin",
  "pyo3",
@@ -3182,6 +3303,12 @@ version = "1.2.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "6ce2be8dc25455e1f91df71bfa12ad37d7af1092ae736f3a6cd0e37bc7810596"
 
+[[package]]
+name = "strsim"
+version = "0.11.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7da8b5736845d9f2fcb837ea5d9e2628564b3b043a70948a3f0b778838c5fb4f"
+
 [[package]]
 name = "subtle"
 version = "2.6.1"
@@ -3558,6 +3685,12 @@ version = "0.1.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "ba73ea9cf16a25df0c8caa16c51acb937d5712a8429db78a3ee29d5dcacd3a65"
 
+[[package]]
+name = "vcpkg"
+version = "0.2.15"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "accd4ea62f7bb7a82fe23066fb0957d48ef677f6eeb8215f372f52e48bb32426"
+
 [[package]]
 name = "version_check"
 version = "0.9.5"