Resolve pytest warnings for invalid JSON tests

[Teagan42]

Summary

• update invalid JSON REST tests to use content so httpx no longer emits deprecation warnings
• document in AGENTS.md that pytest warnings must be addressed and bump the package version metadata

Testing

• uv run pytest

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https://chatgpt.com/codex/tasks/task_e_68e105a8abe48328b4606e7b8fe709a5

[Copilot]

Pull Request Overview

This PR resolves pytest warnings by updating test HTTP client calls to use the correct parameter name and documents the requirement to address pytest warnings in the development workflow.

• Updated HTTP test client calls from deprecated data parameter to content parameter
• Bumped package version from 0.26.46 to 0.26.47
• Enhanced documentation to require addressing pytest warnings before committing

Reviewed Changes

Copilot reviewed 4 out of 5 changed files in this pull request and generated no comments.

File	Description
tests/test_server.py	Updated two test functions to use content instead of data parameter for HTTP POST requests
pyproject.toml	Bumped version number to 0.26.47
docker/pyproject.deps.toml	Updated version number to match main pyproject.toml
AGENTS.md	Added requirement to address pytest warnings in the testing workflow documentation

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[github-actions]

Coverage Report

File	Stmts	Miss	Cover	Missing
mcp_plex
config.py	33	6	82%	50, 52–55, 58
loader.py	565	6	99%	198, 253, 255–257, 273
server.py	592	28	95%	41–42, 117–118, 146, 250, 254, 275–278, 295, 353, 367, 385–386, 423, 1074, 1096–1102, 1138, 1156, 1161, 1179, 1303, 1340
TOTAL	1364	40	97%

Tests	Skipped	Failures	Errors	Time
91	0 💤	0 ❌	0 🔥	50.381s ⏱️