fix: preserve sync test dependency stdlib detection

[stranske]

Summary

• use Python's stdlib module inventory plus fallback allowlist in sync_test_dependencies
• restore jwt -> PyJWT dependency mapping
• add focused regression coverage for html/http/secrets and jwt imports

Validation

• python -m pytest tests/scripts/test_sync_test_dependencies.py tests/scripts/test_sync_test_dependencies_mapping.py -q
• python -m ruff check scripts/sync_test_dependencies.py templates/consumer-repo/scripts/sync_test_dependencies.py tests/scripts/test_sync_test_dependencies.py tests/scripts/test_sync_test_dependencies_mapping.py

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[agents-workflows-bot]

Automated Status Summary

Head SHA: c6bdb16
Latest Runs: ⏳ pending — Gate
Required contexts: Gate / gate, Health 45 Agents Guard / guard
Required: core tests (3.12): ⏳ pending, core tests (3.13): ⏳ pending, docker smoke: ⏳ pending, gate: ⏳ pending

Workflow / Job	Result	Logs
(no jobs reported)	⏳ pending	—

Coverage Overview

• Coverage history entries: 1

Coverage Trend

Metric	Value
Current	93.12%
Baseline	85.00%
Delta	+8.12%
Minimum	70.00%
Status	✅ Pass

Top Coverage Hotspots (lowest coverage)

File	Coverage	Missing
src/cli_parser.py	81.8%	4
src/percentile_calculator.py	95.0%	1
src/aggregator.py	95.0%	2
src/__init__.py	100.0%	0
src/ndjson_parser.py	100.0%	0

Updated automatically; will refresh on subsequent CI/Docker completions.

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Scope

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[stranske]

Closing as superseded by #2117, which carried the stdlib dependency detection / jwt to PyJWT mapping fix forward onto current main, passed focused tests and Gate, and merged in aa5fca7.