Split bin dir into separate daemon and check dirs

This lets us manage their increasingly disparate dependencies separately

daemon/web/src/lib/ndjson.ts

@@ -0,0 +1,27 @@
+export type NewlineDeliminatedJson = any[];
+
+export function parse_ndjson(input: string): NewlineDeliminatedJson {
+    const lines = input.split('\n');
+    const result = [];
+    let current_line = '';
+    while (lines.length > 0) {
+        current_line += lines.shift();
+        if (current_line.length === 0) {
+            continue;
+        }
+        try {
+            const entry = JSON.parse(current_line);
+            result.push(entry);
+            current_line = '';
+        } catch (e) {
+            // if this chunk wasn't valid JSON, assume there was an escaped
+            // newline in the JSON line, so simply continue to the next one.
+            // however, if we've reached the end of the input, that means we
+            // were given invalid nd-json
+            if (lines.length === 0) {
+                throw new Error(`unable to parse invalid nd-json: ${e}, "${current_line}"`);
+            }
+        }
+    }
+    return result;
+}