Fix TypeScript table handle casing

[clockwork-labs-bot]

⚠️ BREAKING CHANGE

This changes generated TypeScript client table/view handles for snake_case module accessors.

Generated TS clients will now expose table and view handles using TypeScript casing, matching the casing policy design:

• ctx.db.database_tree becomes ctx.db.databaseTree
• tables.logged_out_player becomes tables.loggedOutPlayer
• tables.my_progress becomes tables.myProgress

The underlying wire/table names stay unchanged. For example, the generated handle is camelCase, but the table metadata still has name: 'logged_out_player'.

Why

The TypeScript code generator was using table.accessor_name and view.accessor_name directly as object keys in tablesSchema. That preserved the raw module accessor spelling instead of applying the target-language Case::Camel conversion. This made TS table handles drift from the intended client casing policy.

What changed

• Convert generated TypeScript table and view handle keys with Case::Camel.
• Add a regression test that asserts snake_case table/view accessors generate camelCase TS handles.
• Update the TypeScript codegen snapshot.
• Update checked-in generated TS bindings and references that change under this fix.

Generated code in this repo that changes as a result:

• crates/bindings-typescript/test-app/src/module_bindings/index.ts
• crates/bindings-typescript/test-react-router-app/src/module_bindings/index.ts
• crates/bindings-typescript/test-solid-router/src/module_bindings/index.ts
• crates/bindings-typescript/case-conversion-test-client/src/module_bindings/index.ts
• demo/Blackholio/client-ts/src/module_bindings/index.ts
• templates/hangman-react-ts/src/module_bindings/index.ts
• templates/money-exchange-react-ts/src/module_bindings/index.ts
• crates/codegen/tests/snapshots/codegen__codegen_typescript.snap

I also updated the corresponding client/test references to the new generated handle names.

Verification

• cargo test -p spacetimedb-codegen typescript
• cargo fmt --all --check
• git diff --check
• prettier --check on touched TS files that already match repo Prettier style

Full pnpm --dir crates/bindings-typescript lint could not run in the temporary worktree because it has no node_modules; a symlink workaround still failed eslint module resolution before linting project files. The changed non-Blackholio TS files pass Prettier check. Blackholio generated/client files were left in their existing local formatting style to avoid unrelated formatting churn.