Copy cached Time-Lost radius mods per node

[unrealdreamz]

Fixes #717

Summary

• Copy cached Time-Lost / Timeless radius jewel mods before adding them to each passive node.
• Refresh the local cache reference immediately after rebuilding stale radius-jewel cache data.
• Add a focused regression spec for weapon-set condition leakage between cached radius-jewel mods.

Root Cause

The Time-Lost / Timeless radius-jewel fast path caches the generated small/notable mod lists once, then reuses those same mod table references for every matching passive node.

buildModListForNode later mutates each node-local mod to add or remove Condition:WeaponSet1/2. Because ModList:AddList inserts references, not copies, a weapon-set passive and a normal passive could mutate the same cached mod object. That let weapon-set conditions leak between passives, matching the Against the Darkness mana overcount reported in #717.

Fix

• Added a small helper that deep-copies cached radius-jewel mods into the node-local mod list.
• Replaced the cached Time-Lost / Timeless AddList calls with copied insertion for both small and notable passive cached mods.
• Rebound the local cache variable after refreshing stale radius-jewel cache data so the current node uses the rebuilt cache immediately.
• Added TestRadiusJewels_spec.lua to prove a weapon-set passive keeps its WeaponSet2 condition after a normal passive using the same cached Time-Lost mod is processed.

Validation

• gh auth status -> authenticated as unrealdreamz.
• Open PR search for #717 Against the Darkness Time-Lost Diamond -> no duplicate open PR found.
• git diff --check -> passed; Git only reported existing Windows LF-to-CRLF checkout warnings.
• git diff --cached --check -> passed; Git only reported existing Windows LF-to-CRLF checkout warnings.
• git show --check --stat --oneline --no-renames HEAD -> passed.
• Targeted Busted spec was added but could not be executed locally because this Windows environment has no lua, luajit, busted, docker, or docker-compose on PATH.

Risk / Rollback

Risk is limited to Time-Lost / Timeless cached radius-jewel mods. The change preserves the existing cache and parser behavior, but prevents later node-specific mutation from writing back into cached mod objects. Rollback is the single commit if CI exposes an unexpected fixture dependency on shared references.

[LocalIdentity]

No longer an issue, not sure when we fixed it in PoB