fix(sync): (Codex) Sync digest consistency / eventual consistency

[cyfung1031]

同步流程不再完全依赖“上传后立刻重新 list() 云端文件”来刷新 file_digest。现在 pushScript() 会在脚本和 .meta.json 成功写入后，返回这两个文件的内容摘要；syncOnce() 会收集所有成功上传的摘要，并在 updateFileDigest() 里把它们合并进云端列表结果。即使 Google Drive / S3 这类存储刚上传后目录列表短暂漏掉新文件，本地 digest 也会保留刚刚确认写入的文件，避免下次同步误判为缺失或变更后重复上传。

也同步处理了安装脚本触发的单次上传路径：scriptInstall() 现在同样会把 pushScript() 返回的摘要传给 updateFileDigest()。

[CodFrm]

Code review

Found 1 issue:

1. After this PR, the digest store is populated with locally-computed md5OfText(content) for files that were just pushed. On the next sync, line 436 compares that stored MD5 against file.script!.digest returned by fs.list(). For most filesystem backends (webdav.ts:118 returns item.etag, onedrive.ts:178 returns val.eTag, dropbox.ts:204 returns item.content_hash, s3.ts:239 returns the S3 ETag, zip.ts:56 returns ""), FileInfo.digest is the provider-native ETag/content-hash — not an MD5. The equality check therefore never matches, so every previously-pushed script is detected as "changed" on every subsequent sync and re-uploaded. This regresses the optimization on roughly 5 of 7 backends; only Google Drive (md5Checksum) and Baidu (md5) happen to match.

Concretely, in updateFileDigest, Object.assign(newFileDigestMap, knownFileDigestMap) overwrites the cloud-native digest from fs.list() with the local MD5; line 436 then compares incompatible formats on the next pass.

scriptcat/src/app/service/service_worker/synchronize.ts

Lines 432 to 440 in 68f3606

	}
	})()
	);
	return;
	}
	// 过滤掉无变动的文件
	if (fileDigestMap[file.script!.name] === file.script!.digest) {
	return;
	}

scriptcat/src/app/service/service_worker/synchronize.ts

Lines 549 to 560 in 68f3606

	async updateFileDigest(fs: FileSystem, knownFileDigestMap: FileDigestMap = {}) {
	const newList = await fs.list();
	const newFileDigestMap: FileDigestMap = {};
	for (const file of newList) {
	newFileDigestMap[file.name] = file.digest;
	}
	Object.assign(newFileDigestMap, knownFileDigestMap);
	await this.storage.set("file_digest", newFileDigestMap);
	return;
	}
	// 删除云端脚本数据

scriptcat/src/app/service/service_worker/synchronize.ts

Lines 617 to 625 in 68f3606

	[filename]: md5OfText(scriptCode),
	[metaFilename]: md5OfText(metaJson),
	};
	} catch (e) {
	logger.error("push script error", Logger.E(e));
	throw e;
	}
	}

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