fix(config): warn on ignored legacy config keys

ts/config/config-manager.ts

@@ -1,6 +1,7 @@
 import * as fs from 'node:fs/promises';
 import { PATHS, VERSION } from '../constants.ts';
 import type { IModelGridConfig } from '../interfaces/config.ts';
+import { logger } from '../logger.ts';
 
 export class ConfigManager {
   public async loadConfig(): Promise<IModelGridConfig> {
@@ -21,6 +22,8 @@ export class ConfigManager {
   }
 
   public normalizeConfig(config: Partial<IModelGridConfig>): IModelGridConfig {
+    this.logIgnoredConfigKeys(config);
+
     const filteredContainers = (config.containers || []).filter(
       (container) => (container as { type?: string }).type !== 'ollama',
     );
@@ -72,4 +75,38 @@ export class ConfigManager {
       checkInterval: config.checkInterval || 30000,
     };
   }
+
+  private logIgnoredConfigKeys(config: Partial<IModelGridConfig>): void {
+    const unknownTopLevelKeys = Object.keys(config).filter((key) =>
+      !['version', 'api', 'ui', 'docker', 'gpus', 'containers', 'models', 'cluster', 'checkInterval']
+        .includes(key)
+    );
+
+    for (const key of unknownTopLevelKeys) {
+      logger.warn(`Ignoring unknown config key: ${key}`);
+    }
+
+    const legacyModelConfig = config.models as {
+      greenlistUrl?: string;
+      autoPull?: boolean;
+      defaultContainer?: string;
+    } | undefined;
+
+    if (legacyModelConfig?.greenlistUrl) {
+      logger.warn('Ignoring removed config key: models.greenlistUrl');
+    }
+    if (legacyModelConfig?.autoPull !== undefined) {
+      logger.warn('Ignoring removed config key: models.autoPull');
+    }
+    if (legacyModelConfig?.defaultContainer) {
+      logger.warn('Ignoring removed config key: models.defaultContainer');
+    }
+
+    for (const container of config.containers || []) {
+      const containerType = (container as { type?: string }).type;
+      if (containerType === 'ollama') {
+        logger.warn('Ignoring unsupported container type: ollama');
+      }
+    }
+  }
 }