Fix out-of-bounds UB in getNumber: log full number string instead of number[1]

[Copilot]

getNumber in CFO_Compiler.cpp logged number[1] via __COUTVS__ before any bounds check, causing out-of-bounds access and undefined behavior for single-character tokens (e.g. "5").

Change

• Replace __COUTVS__(2, number[1]) with __COUTVS__(2, number) in both integer and fallback branches of getNumber

// Before — UB when number.size() == 1
__COUTVS__(2, number[1]);

// After — safe, logs the full token
__COUTVS__(2, number);

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