[takeokunn]

Summary

• Move the unchanged V8 object runtime to src/v8-objects/runtime-vm-objects.lisp.
• Register the file under the v8-objects ASDF module.

Verification

• Darwin SBCL full suite: 1,109 passed; 0 skipped, todo, failed, or errored.
• Feature lint: 21 features, checks 1–7 passed.
• Orphan tests: 79 files found, 75 registered, 4 allowlisted, 0 orphan.
• Paredit syntax checks passed for the moved source and ASDF file.
• Umbrella integration comparison at cl-cc 7e084f7d, using JavaScript revisions 4a6326c0 and 6d761c82: both runs reported 955 passed, 26 expected-failed, 0 skipped, 0 todo, 0 failed, 0 errored (981 total); all 26 expected-failure IDs matched.