refactor: consolidate nvim crates, extract server library, and update workspace dependencies

mcp-memory-nvim/Cargo.toml

@@ -0,0 +1,10 @@
+[package]
+name = "mcp-memory-nvim"
+version = "1.0.0"
+edition = "2024"
+
+[dependencies]
+serde_json = "1.0"
+tokio = { version = "1.37", features = ["full"] }
+
+nvim-core = { path = "../nvim-core" }

mcp-memory-nvim/build.rs

@@ -0,0 +1,22 @@
+use std::process::Command;
+
+fn main() {
+    let git_hash = Command::new("git")
+        .args(["rev-parse", "--short", "HEAD"])
+        .output()
+        .ok()
+        .and_then(|out| String::from_utf8(out.stdout).ok())
+        .unwrap_or_else(|| "unknown".to_string());
+
+    let git_date = Command::new("git")
+        .args(["log", "-1", "--format=%cd", "--date=format:%y.%m.%d.%H%M%S"])
+        .output()
+        .ok()
+        .and_then(|out| String::from_utf8(out.stdout).ok())
+        .unwrap_or_else(|| "unknown".to_string());
+
+    let version = format!("{} ({})", git_date.trim(), git_hash.trim());
+    println!("cargo:rustc-env=APP_VERSION={version}");
+    println!("cargo:rerun-if-changed=../.git/HEAD");
+    println!("cargo:rerun-if-changed=../.git/index");
+}

mcp-memory-nvim/src/main.rs

@@ -0,0 +1,6 @@
+fn main() {
+    let rt = tokio::runtime::Runtime::new().unwrap();
+    rt.block_on(async {
+        nvim_core::run_mcp_loop("mcp-memory-nvim", env!("APP_VERSION")).await;
+    });
+}