inspect_adb_package converted the dumpsys versionCode, a signed 64-bit long
(versionCodeMajor << 32 | versionCode), to a JavaScript number. Values above
2^53 were rounded, so 9007199254740993 was reported as 9007199254740992 with
the same Evidence ID, and negative values became null.
Return version_code as the exact decimal string dumpsys prints, matching the
apktool and JADX version_code contracts.
BREAKING CHANGE: inspect_adb_package version_code is now a decimal string
("45") instead of a JSON number (45). Read it as a string, or parse it with
BigInt when numeric comparison is needed.
Fixes#3368
Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>