BREAKING: Convert getter methods to properties for cleaner API

[lambdalisue]

Summary

• Convert HTTP response body accessors (text(), json(), arrayBuffer(), blob(), raw()) from methods to properties
• Convert GraphQL response accessors (data(), raw()) from methods to properties
• Convert ConnectRPC response accessors (data(), raw()) from methods to properties
• Update all tests and documentation examples to use property syntax
• Change json property to return unknown instead of generic type

Why

The method syntax response.json() was unnecessary for simple accessors that just return cached values. Converting to properties (response.json) provides:

1. Cleaner API: Simpler syntax without parentheses for property access
2. Consistency: Aligns with standard JavaScript/TypeScript patterns (e.g., arr.length not arr.length())
3. Same behavior: Getters preserve lazy evaluation and caching semantics
4. Type safety: The json property returning unknown forces explicit type assertions, improving type safety

This is a breaking change but improves the developer experience and code readability across all client packages.

Migration Guide

// Before
const user = response.json<User>();
const text = response.text();
const data = response.data<T>();

// After
const user = response.json as User | null;
const text = response.text;
const data = response.data as T | null;

Test Plan

• All unit tests pass with updated property syntax
• Integration tests pass for HTTP, GraphQL, and ConnectRPC clients
• Type checking passes (deno task check)
• Documentation examples updated and verified
• deno task verify passes (format, lint, type-check, tests)

[codecov]

Codecov Report

❌ Patch coverage is 93.65079% with 4 lines in your changes missing coverage. Please review.

Files with missing lines	Patch %	Lines
packages/probitas-client-http/response.ts	84.61%	4 Missing ⚠️

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