Rename project from nginx-test to sqlite-serve

- Updated package name in Cargo.toml: nginx-test → sqlite-serve
- Updated library name: libnginx_test.dylib → libsqlite_serve.dylib
- Updated all load_module directives in nginx configs
- Updated build checks in start scripts
- Updated branding in footer template
- Updated project name in all README files

The name 'sqlite-serve' better reflects the module's purpose:
serving dynamic content from SQLite databases via NGINX.

Cargo.lock

@@ -373,17 +373,6 @@ dependencies = [
  "shlex",
 ]
 
-[[package]]
-name = "nginx-test"
-version = "0.1.0"
-dependencies = [
- "handlebars",
- "ngx",
- "rusqlite",
- "serde",
- "serde_json",
-]
-
 [[package]]
 name = "ngx"
 version = "0.5.0"
@@ -624,6 +613,17 @@ version = "1.15.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "67b1b7a3b5fe4f1376887184045fcf45c69e92af734b7aaddc05fb777b6fbd03"
 
+[[package]]
+name = "sqlite-serve"
+version = "0.1.0"
+dependencies = [
+ "handlebars",
+ "ngx",
+ "rusqlite",
+ "serde",
+ "serde_json",
+]
+
 [[package]]
 name = "strsim"
 version = "0.11.1"