docs: add loader pipeline adr

[Teagan42]

Summary

• add ADR 0002 describing the loader multi-worker pipeline and its consequences
• bump project version metadata to 0.26.60 and refresh uv.lock to stay consistent

Why

• document the architectural decision behind the loader multi-worker rearchitecture that landed previously

Affects

• docs/adr, version metadata in pyproject, docker manifest, and lockfile

Testing

• uv run ruff check .
• uv run pytest

Documentation

• added ADR 0002 covering the loader multi-worker pipeline

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https://chatgpt.com/codex/tasks/task_e_68e24fabf7e08328a7c77a11950f3fa7

[Copilot]

Pull Request Overview

This PR documents the loader multi-worker pipeline architecture and bumps the project version to 0.26.60. The main purpose is to add ADR 0002 explaining the architectural decision behind the loader's transition from sequential to parallel processing with multiple workers.

Key changes:

• Add comprehensive ADR documentation for the multi-worker pipeline design
• Refactor loader tests to use the new LoaderPipeline class instead of legacy functions
• Update version metadata across project files to maintain consistency

Reviewed Changes

Copilot reviewed 6 out of 7 changed files in this pull request and generated 1 comment.

Show a summary per file

File	Description
docs/adr/0002-loader-pipeline-multi-worker.md	New ADR documenting the multi-worker pipeline architecture and design rationale
tests/test_loader_unit.py	Updated tests to use LoaderPipeline class and new build_point function
tests/test_loader_logging.py	Refactored logging tests to work with pipeline-based architecture
mcp_plex/loader/init.py	Added LoaderPipeline class and supporting functions for multi-worker processing
pyproject.toml	Version bump to 0.26.60
docker/pyproject.deps.toml	Version bump to 0.26.60 for Docker builds

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[Copilot]

The removed thumb and art fields from the test data could indicate missing test coverage for these fields in the build_point function. Consider adding explicit tests to verify thumb and art field handling.

[github-actions]

Coverage Report

File	Stmts	Miss	Cover	Missing
mcp_plex/loader
__init__.py	849	131	85%	243, 298, 300–302, 318, 404–409, 1011–1012, 1056, 1058, 1113–1114, 1125–1127, 1130, 1133–1134, 1136, 1158, 1168, 1179–1211, 1226, 1228, 1235–1249, 1252–1266, 1272, 1287–1318, 1323–1356, 1359–1363, 1368–1376, 1386, 1395, 1399–1401, 1520–1522, 1855
mcp_plex/server
__init__.py	614	29	95%	43–44, 119–120, 148, 252, 256, 277–280, 297, 362, 365, 402, 420–421, 458, 1109, 1131–1137, 1173, 1191, 1196, 1214, 1338, 1375
__main__.py	4	4	0%	3–8
config.py	48	7	85%	50, 52–55, 65, 76
TOTAL	1717	171	90%

Tests	Skipped	Failures	Errors	Time
101	0 💤	0 ❌	0 🔥	1m 0s ⏱️