improve: reuse route planner ip block entry type

[snakkeeh]

Changes

• Reuse shared RoutePlannerIpBlockEntry type in routePlannerManager.ts, config.types.ts, and player.types.ts instead of three duplicated inline unions. Single source of truth stays in src/typings/api/routeplanner.types.ts.
• Fix betwenn typo in TV.ts and TV_downgraded.ts player-params comments.

Why

Follow-up to #237: the shared entry type introduced there was only used by the status endpoint. Reusing it in the manager and config types keeps all route planner ipBlocks shapes consistent, and folding in the tiny comment typo fix avoids a noise-only PR.

Checkmarks

• The modified endpoints have been tested.
• Used the same indentation as the rest of the project.
• Still compatible with LavaLink clients.

Additional information

Type-only change plus comment-only typo fix; no runtime behavior changed. Verified routeplanner.ts + routePlannerManager.ts still import cleanly with node --experimental-strip-types.