This bundles a collection of Typescript updates that correct typings
across the servers:
- Manifest typings have been narrowed
- Some methods have been moved to abstract methods on classes
- Added some type guard functions for route matches
- Utilized early returns in logic to reduce nesting
- Added mutability modifiers to some properties to prevent accidental
mutations
- Removed some useless assigns from unused catch error params:
```ts
try {
await something
} catch (_) {}
// Is the same as
try {
await something
} catch {}
```
This does not introduce any new functionality, simply some QOL
improvements.
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