feat: serve lib decoupling

Cargo.toml

@@ -7,9 +7,11 @@ members = [
     "crates/cache",
     "crates/engine",
     "crates/storage",
+    "crates/config",
     "crates/storage-postgres",
     "crates/auth",
     "crates/server",
+    "crates/app",
     "crates/bin",
 ]
 
@@ -25,9 +27,11 @@ extenddb-core = { path = "crates/core" }
 extenddb-cache = { path = "crates/cache" }
 extenddb-engine = { path = "crates/engine" }
 extenddb-storage = { path = "crates/storage" }
+extenddb-config = { path = "crates/config" }
 extenddb-storage-postgres = { path = "crates/storage-postgres" }
 extenddb-auth = { path = "crates/auth" }
 extenddb-server = { path = "crates/server" }
+extenddb-app = { path = "crates/app" }
 
 # Serialization
 serde = { version = "1", features = ["derive"] }
@@ -51,7 +55,6 @@ hyper = { version = "1" }
 urlencoding = { version = "2.1" }
 
 # Database plugin registry
-inventory = "0.3"
 
 # Caching
 moka = { version = "0.12", features = ["future"] }

crates/app/Cargo.toml

@@ -0,0 +1,33 @@
+# Copyright 2026 ExtendDB contributors
+# SPDX-License-Identifier: Apache-2.0
+[package]
+name = "extenddb-app"
+version.workspace = true
+edition.workspace = true
+rust-version.workspace = true
+license.workspace = true
+
+[dependencies]
+extenddb-auth = { workspace = true }
+extenddb-cache = { workspace = true }
+extenddb-core = { workspace = true }
+extenddb-engine = { workspace = true }
+extenddb-storage = { workspace = true }
+extenddb-config = { workspace = true }
+extenddb-server = { workspace = true }
+tokio = { workspace = true }
+anyhow = { workspace = true }
+clap = { workspace = true }
+daemonize = { workspace = true }
+serde = { workspace = true }
+serde_json = { workspace = true }
+sqlx = { workspace = true }
+time = { workspace = true }
+toml = { workspace = true }
+tracing = { workspace = true }
+tracing-subscriber = { workspace = true }
+base64 = { workspace = true }
+libc = { workspace = true }
+rcgen = { workspace = true }
+rustls = { workspace = true }
+rustls-pemfile = { workspace = true }

crates/bin/src/cmd_catalog_check.rs → crates/app/src/cmd_catalog_check.rs

@@ -17,7 +17,7 @@ use std::collections::HashSet;
 use clap::Args;
 use sqlx::postgres::PgPoolOptions;
 
-use crate::config;
+use extenddb_config as config;
 
 #[derive(Args)]
 pub struct CatalogCheckArgs {
@@ -47,7 +47,7 @@ pub async fn run(args: CatalogCheckArgs) -> anyhow::Result<()> {
     let run_dir = config::expand_tilde(&app_config.server.run_dir);
 
     // Refuse to run while server is up.
-    let pid_path = crate::serve_helpers::pid_file_path(&run_dir, port);
+    let pid_path = extenddb_config::pid_file_path(&run_dir, port);
     if let Ok(contents) = std::fs::read_to_string(&pid_path)
         && let Ok(pid) = contents.trim().parse::<i32>()
         && crate::util::is_process_alive(pid)

crates/bin/src/cmd_destroy.rs → crates/app/src/cmd_destroy.rs

@@ -7,7 +7,7 @@
 
 use clap::Args;
 
-use crate::config;
+use extenddb_config as config;
 
 #[derive(Args)]
 #[allow(clippy::doc_markdown)] // Clap help text, not rustdoc

crates/bin/src/cmd_init.rs → crates/app/src/cmd_init.rs

@@ -10,8 +10,8 @@ use std::path::Path;
 
 use clap::Args;
 
-use crate::config;
 use crate::init_helpers::{generate_config, generate_tls_cert_if_needed};
+use extenddb_config as config;
 
 #[derive(Args)]
 #[allow(clippy::doc_markdown)] // Clap help text, not rustdoc

crates/bin/src/cmd_migrate.rs → crates/app/src/cmd_migrate.rs

@@ -7,7 +7,7 @@
 
 use clap::Args;
 
-use crate::config;
+use extenddb_config as config;
 
 #[derive(Args)]
 pub struct MigrateArgs {