Parser skips fully qualified #[soroban_sdk::contracterror]

[eleven-smg]

The gap

src/parse.js matches the literal string #[contracterror]. A contract that writes the attribute in fully qualified form is silently skipped, so its codes never enter the registry and a collision with it is never reported.

#[soroban_sdk::contracterror]
#[repr(u32)]
pub enum RouterError {
    PairNotFound = 300,
}

This is the worst class of bug for this tool: a false negative in a check people gate merges on.

Where

• const ATTRIBUTE = "#[contracterror]" in src/parse.js
• the fast path if (!source.includes("#[contracterror]")) continue in bin/codepact.js must be relaxed at the same time, or the file is dropped before the parser ever sees it

Expected behaviour

Recognise #[contracterror] and any path-qualified form ending in contracterror, with arbitrary whitespace inside the brackets.

Definition of done

• a parser test covering the qualified form and one covering #[ contracterror ]
• the CLI fast path updated in the same PR
• no change to the reported line numbers for the unqualified form