Terminal-themed markdown diary

Single-user diary served as one Rust binary with the Svelte frontend
embedded.

- axum 0.8 + SQLite (sqlx), migrations run at startup
- stateless HMAC session cookie; credentials from .env, compared in
  constant time
- FTS5 full-text search, user input rewritten into quoted prefix terms
- media uploads linked to entries by scanning bodies for /api/media/<id>,
  which scopes share-token media access and entry deletion
- unguessable share links (192-bit token) serving a public read-only page
- vim keybindings via CodeMirror plus a modal browse layer and : command
  line; disabled on touch devices

src/state.rs

@@ -0,0 +1,11 @@
+use std::sync::Arc;
+
+use sqlx::SqlitePool;
+
+use crate::config::Config;
+
+#[derive(Clone)]
+pub struct AppState {
+    pub db: SqlitePool,
+    pub config: Arc<Config>,
+}