[FEATURE] Collapse the 26 remaining per-workspace tsconfigs onto the root base (blocked on Bun paths-inheritance)

[Noisemaker111]

Problem

The root base tsconfig shipped (PR #857 for combined-critique #56), but only the 3 paths-free tsconfigs actually extend it and drop their duplicated compiler flags. The other 26 still repeat target/module/strict (drift risk) because each must keep a local paths block — and they can't inherit paths from the base yet.

Context

• Bun's test runner does not inherit tsconfig paths through extends (upstream bug oven-sh/bun#23695). If a leaf tsconfig extends the base and relies on inherited paths, bun test silently fails to resolve @jgengine/*.
• tsgo separately rejects baseUrl (TS5102), so the classic baseUrl workaround isn't available either.
• This is the documented "trap Harvest: first-person looter-shooter engine hardening #2" in the critique-remainder work; the base + the 3 clean extenders already landed.

Suggested scope

1. Watch oven-sh/bun#23695; when Bun honors inherited paths, collapse the remaining 26 leaf tsconfigs onto the base in one regex sweep (drop the duplicated flags, keep only paths + per-package specifics).
2. Verify with bun test in each affected package before shipping (the inheritance is the whole point of the blocker).
3. Until then, leave the 26 as-is — do not extend-and-inherit paths, it breaks bun test.