-v raises the CLI's log level per repeat; -q prints only fatal errors (closes #212)

Every line quak prints on stderr now goes through one log, in src/cli-log.ts, at one of six levels. The default, info, prints what quak printed before. -v adds each retry and the start and end of each refresh and ML data fetch; -vv adds each request with its result. -q prints only fatal lines, and is refused with -v; both are program options. Every non-zero exit logs one fatal line, so a run that exits 1 because files failed says how many and where to look. Every line reporting a failure is at error. --json changes stdout only, so backup and --json runs log their progress on stderr. withRetry and ApiClient report retries and requests through new callbacks.

Model: opus-5-5

test/cli/backup-end-to-end.test.ts

@@ -54,6 +54,7 @@ import {
     saveSession,
     type CliContext,
 } from "../../src/cli-commands.js";
+import { stderrLog } from "../../src/cli-log.js";
 import { run } from "../../src/cli-run.js";
 import { loadSession } from "../../src/cli-session.js";
 import { Client } from "../../src/client.js";
@@ -303,9 +304,10 @@ const backup = async (
     const prompted = async (): Promise<never> => {
         throw new Error("quak backup prompted");
     };
+    const log = stderrLog(stderr, "info");
     const ctx: CliContext = {
         stdout,
-        stderr,
+        log,
         sessionDir,
         cacheDir: `${dir}-cache`,
         loadSession: (path) =>
@@ -319,7 +321,7 @@ const backup = async (
         promptSecret: prompted,
     };
     const code = await new Promise<number>((resolve) => {
-        void run(backupCommand(ctx, dir, opts), stdout, stderr, resolve);
+        void run(backupCommand(ctx, dir, opts), stdout, stderr, log, resolve);
     });
     return { code, stderr: printed, stdout: output };
 };
@@ -1104,6 +1106,9 @@ describe("a backup whose lock is lost", () => {
         expect(code).toBe(1);
         expect(stderr).toBe(
             "Starting backup...\n" +
+                "Fetched the files of 1 of 3 collections\n" +
+                "Fetched the files of 2 of 3 collections\n" +
+                "Fetched the files of 3 of 3 collections\n" +
                 "Refreshing library...\n" +
                 "Fetching original beach.jpg (100)...\n" +
                 "Fetching original IMG_0002.HEIC (300)...\n" +