fix(tokens): correct withdrawal pairs and PT-DETH aliases

[de-snake]

Summary

• Correct mEDGE → USDC to use both asset icons.
• Improve cp0xLRT → wstETH separation and synchronize its verified legacy wdwsteth.svg fallback. Other withdrawal aliases are untouched.
• Add paired hgETH → rsETH, liUSD-1w → iUSD, rsETH → WETH, and steak7LRT → wstETH assets.
• Add PT-DETH January/April filenames required by legacy and next client conventions. Diesel tokens remain out of scope.

Compatibility

Tested legacy client main (1ca53dab) with SDK master candidate and client staging (ad810c1e) / current main (0184fa56) with SDK next conventions. Current client main has migrated to SDK next.

Static aliases do not fix unresolved phantom symbols intercepted by UI-kit. Companion SDK changes resolve legacy icons by address on master and load historical withdrawal metadata on next; those SDK changes must be released and consumed by clients. Publish these assets first.

Validation

• Exact URL and identical-artwork assertions: 11 tokens across both renderers; also checked current main.
• XML validation, git diff checks, and rendered in-app Browser inspection passed.
• Local generation and audit checks remain in the workspace; no audit dumps or dependencies are included.

Limits

Not claiming complete deployed multichain coverage: the broader audit encountered Base/WorldChain RPC or deployment errors and incomplete legacy snapshot chains. These do not invalidate the focused icon checks; post-release live verification is still required.

SDK companion PRs: Gearbox-protocol/sdk#502 (master), Gearbox-protocol/sdk#503 (next).