memory settings implementation

packages/orchestration-service/src/config/settings.js

@@ -0,0 +1,30 @@
+const fs = require('fs');
+const path = require('path');
+const { ORCHESTRATION } = require('@nexusai/shared');
+
+const SETTINGS_PATH = path.join(__dirname, '../../data/settings.json');
+
+const DEFAULTS = {
+  recentEpisodeLimit: ORCHESTRATION.RECENT_EPISODE_LIMIT,
+  semanticLimit:      ORCHESTRATION.SEMANTIC_LIMIT,
+  scoreThreshold:     ORCHESTRATION.SCORE_THRESHOLD,
+};
+
+function load() {
+  try {
+    const raw = fs.readFileSync(SETTINGS_PATH, 'utf8');
+    return { ...DEFAULTS, ...JSON.parse(raw) };
+  } catch {
+    return { ...DEFAULTS }; // file doesn't exist yet — use defaults
+  }
+}
+
+function save(updates) {
+  const current = load();
+  const next = { ...current, ...updates };
+  fs.mkdirSync(path.dirname(SETTINGS_PATH), { recursive: true });
+  fs.writeFileSync(SETTINGS_PATH, JSON.stringify(next, null, 2));
+  return next;
+}
+
+module.exports = { load, save, DEFAULTS };