fix(runtime): contain translated PS2 paths

[hedgeg0d]

PS2 device paths were normalized but not checked against their configured roots. Parent traversal and pre-existing symlinks could resolve outside hostRoot, cdRoot, or mcRoot.

• Canonicalize configured roots and translated paths before accepting them
• Compare existing roots by filesystem identity
• Restrict direct Windows paths to cdRoot
• Add translation and fioOpen regression tests

Tested with ps2x_tests: 428 passed. The runtime changes from #235 were applied only for the Debug test run because current main aborts in PS2SifDma without that fix.

[hedgeg0d]

Replaced by #239. This branch included an unrelated commit from the fork's main branch.