Fix Qdrant client lifecycle reset in Plex server

[Teagan42]

What

• ensure the Plex server lazily rebuilds its default Qdrant client when the FastMCP lifespan closes
• guard against misconfiguration with an explicit error and keep the configurable setter semantics
• add regression coverage that verifies the client is recreated after a close and bump the package version metadata

Why

• the FastMCP tool manager invokes the server lifespan per tool call, which closed the shared Qdrant client and left later requests unable to execute searches
• restoring the client lazily prevents RuntimeError: Cannot send a request, as the client has been closed while preserving existing customization hooks

Affects

• Plex server startup, shutdown, and tool execution paths that rely on the default Qdrant client
• server internal tests covering Qdrant client lifecycle
• project version metadata and dependency lock file

Testing

• uv run ruff check .
• uv run pytest

Documentation

• not required

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https://chatgpt.com/codex/tasks/task_e_68e772f6293883289ccf5e0d86e1fc92

[github-actions]

Coverage Report

File	Stmts	Miss	Cover	Missing
mcp_plex/loader
__init__.py	182	11	94%	139, 209, 323–325, 327, 416–435
qdrant.py	198	2	99%	338–343
samples.py	41	3	93%	55–57
mcp_plex/loader/pipeline
enrichment.py	520	75	86%	234, 255–261, 314, 319, 350, 352, 359, 361, 461, 482, 502, 510–512, 515–519, 522–524, 532–537, 545, 596–597, 621, 679–680, 696, 723, 730, 732, 736, 788, 806, 818, 847, 853, 856–864, 890, 893–895, 912–914, 934–937, 941, 955–959, 981, 983, 986–988
ingestion.py	155	13	92%	82, 133–153, 188, 225, 241, 334, 340, 358
orchestrator.py	95	5	95%	60, 136, 165, 188–189
persistence.py	130	9	93%	123, 165–166, 174, 185, 189–191, 240
mcp_plex/server
__init__.py	374	17	95%	121, 127–130, 230, 292, 310–311, 319, 394, 488, 518, 537, 544, 563, 676
cli.py	62	1	98%	73
config.py	82	1	99%	59
media.py	223	21	91%	159–165, 174–177, 215–222, 245, 279, 285, 291, 309–310
mcp_plex/server/tools
media_library.py	337	12	96%	203, 576, 674, 693, 744, 795, 866, 956–960
TOTAL	2930	170	94%

Tests	Skipped	Failures	Errors	Time
197	0 💤	0 ❌	0 🔥	1m 28s ⏱️