fix: doctor command auto-creates directories and treats LLM as optional

Instead of showing alarming warnings on first run when storage, log,
and database directories don't exist, the doctor checks now silently
create them and report pass. LLM provider is treated as optional
rather than a warning when not configured.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

cli/src/checks/storage-check.ts

@@ -7,16 +7,7 @@ export function storageCheck(config: PaperclipConfig, configPath?: string): Chec
   if (config.storage.provider === "local_disk") {
     const baseDir = resolveRuntimeLikePath(config.storage.localDisk.baseDir, configPath);
     if (!fs.existsSync(baseDir)) {
-      return {
-        name: "Storage",
-        status: "warn",
-        message: `Local storage directory does not exist: ${baseDir}`,
-        canRepair: true,
-        repair: () => {
-          fs.mkdirSync(baseDir, { recursive: true });
-        },
-        repairHint: "Run with --repair to create local storage directory",
-      };
+      fs.mkdirSync(baseDir, { recursive: true });
     }
 
     try {