bug: infinite loop risk in duplicate filename check

[LudoLoops]

Issue

In task/create.go:81-92, the filename uniqueness check has no upper limit.

for i := 1; ; i++ {  // ← No break condition!
    if _, err := os.Stat(filePath); os.IsNotExist(err) {
        break
    }
    // Increments forever if all filenames are taken
}

Problem

• If thousands of files with same name exist, loop never terminates
• No safeguard against edge case
• Can hang application

Solution

Add a reasonable limit:

const maxDuplicateAttempts = 100
for i := 1; i <= maxDuplicateAttempts; i++ {
    if _, err := os.Stat(filePath); os.IsNotExist(err) {
        break
    }
}
if i > maxDuplicateAttempts {
    return "", "", fmt.Errorf("too many duplicate filenames")
}

Impact

🟡 Medium - Unlikely edge case but dangerous