stash follow ups

[holic]

• CreateStoreResult -> CreateStashResult or maybe ExtendedStash
• getRecord doesn't account for namespace/table not existing, can runtime error
• getRecord, getTable should return | undefined
  • turn on noUncheckedIndexedAccess tsconfig to help with this
• getRecord (or perhaps in a useRecord hook), accept a strongly typed defaultValue for when the record doesn't exist (more ergonomic than ?? { ... } as const satisfies TableRecord<...>)
• no helpers to access State from stash.get() with dynamically registered tables, using keys is awkward
• see if record value for enums could return a strongly typed value (e.g. 0 | 1 | 2 instead of number)
• some way to clear the stash
• some method to clear the stash
• not being able to get a table by its tableId is annoying during sync, need to carry around original MUD config to map tableId to table label and namespaceLabel
• clarify usages of namespace label with namespaceLabel
• getConfig -> getTableConfig