Restore hooks after frame setup failures

[akeit0]

Line, call, return, and the immediate debug.sethook return callback left hooks suppressed when their frame setup exceeded MaxCallDepth. Protect frame setup with the same cleanup as callback invocation, and pop a hook frame only after a successful push so setup errors preserve the caller and original exception.

Also suppress immediate return-hook dispatch when debug.sethook is called inside a hook. This preserves the documented nonrecursive callback behavior, consistent with Lua 5.2's luaD_hook.

Validation:

• Expanded hook suite: 45 passing cases; 6 reproduce failures on unchanged main.
• Full Release tests: 464 runtime and 69 Source Generator cases pass (CI's ExpectedFailure exclusion).
• Release runtime build: net10.0, net8.0, net6.0, and netstandard2.1; zero warnings/errors.
• CSharpier: all 249 files pass; git diff --check passes.
• Internal Unity 6000.5.5f1 project via CLI/Pipeline: 15 bounded hook-recovery/rearming probes pass. Temporary DLL replacements restored and SHA256 verified.

Refs #338. Lightweight delegate/budget API proposals remain deferred; this PR covers hook correctness only.