add cache-busting

server/index.js

@@ -72,6 +72,20 @@ app.use("/vault-files", (req, res, next) => {
   express.static(vaultPath)(req, res, next);
 });
 
+// Serve dist files with cache headers based on version param
+app.use((req, res, next) => {
+  if (req.path.match(/\/(ignis-ui|shim-loader)\.js$/)) {
+    if (req.query.v) {
+      // Versioned assets - cache for 1 year
+      res.setHeader("Cache-Control", "public, max-age=31536000, immutable");
+    } else {
+      // No version param - short cache for dev/fallback
+      res.setHeader("Cache-Control", "public, max-age=300");
+    }
+  }
+  next();
+});
+
 app.use(express.static(path.join(__dirname, "..", "dist")));
 
 app.use(express.static(config.obsidianAssetsPath));

server/version.js

@@ -0,0 +1,23 @@
+const fs = require("fs");
+const path = require("path");
+const { execSync } = require("child_process");
+
+function getVersion() {
+  const pkg = JSON.parse(
+    fs.readFileSync(path.join(__dirname, "..", "package.json"), "utf-8"),
+  );
+  const semver = pkg.version;
+
+  let hash;
+  try {
+    hash = execSync("git rev-parse --short=7 HEAD", {
+      encoding: "utf-8",
+    }).trim();
+  } catch (e) {
+    hash = Date.now().toString(36).slice(-7);
+  }
+
+  return `${semver}-${hash}`;
+}
+
+module.exports = { getVersion };