ffi: validate fast pointer BigInt argument ranges

[trivikr]

Fixes: #65031

Optimized V8 fast API calls truncate out-of-range pointer BigInts. Validate them against uintptrMax before invoking the raw function so optimized calls match the generic and shared-buffer paths.

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Assisted-by: codex:gpt-5.6-sol

[nodejs-github-bot]

Review requested:

• @nodejs/ffi

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 90.30%. Comparing base (c8fa0b1) to head (7f83e09).
⚠️ Report is 2 commits behind head on main.

Additional details and impacted files

@@ Coverage Diff @@## main #65032 +/- ##
==========================================
- Coverage 92.04% 90.30% -1.74% 
==========================================
Files 399 759 +360 Lines 175810 247645 +71835 Branches 27119 46693 +19574 ==========================================
+ Hits 161816 223630 +61814 - Misses 13682 15467 +1785 - Partials 312 8548 +8236 

Files with missing lines	Coverage Δ
lib/internal/ffi/fast-api.js	94.13% <100.00%> (+68.58%)	⬆️
src/node_ffi.cc	70.71% <ø> (ø)

... and 488 files with indirect coverage changes

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