fix(python): wire tests use package_path for imports

[patrickthornton]

Description

Wire tests wouldn't take into account package_path in the config to give the most qualified possible imports in wire tests, which was fine unless customers changed the init.py to not re-export types at top-level. Now wire tests import from the fully specified from seed.matryoshka.doll.structure import SeedExhaustive instead of from Seed import SeedExhaustive, for instance.

Changes Made

Feed package_path into the base config schema so the dynamic snippet generator can use it during import.

Testing

The exhaustive:package_path fixture shows the changes in the README.md and reference.md

• Unit tests added/updated
• Manual testing completed

[claude]

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[github-actions]

🌱 Seed Test Selector

Select languages to run seed tests for:

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How to use: Click the ⋯ menu above → "Edit" → check the boxes you want → click "Update comment". Tests will run automatically and snapshots will be committed to this PR.

[github-actions]

SDK Generation Benchmark Results

Comparing PR branch against latest nightly baseline on main (2026-04-09T04:46:50Z).

Full benchmark table (click to expand)

Generator	Spec	main (generator)	main (E2E)	PR (generator)	Delta
python-sdk	square	130s	166s	129s	-1s (-0.8%)

main (generator): generator-only time via --skip-scripts (includes Docker image build, container startup, IR parsing, and code generation — this is the same Docker-based flow customers use via fern generate). main (E2E): full customer-observable time including build/test scripts (nightly baseline, informational). Delta is computed against generator-only baseline.
⚠️ = generation exited with a non-zero exit code (timing may not reflect a successful run).
Baseline from nightly runs on main (latest: 2026-04-09T04:46:50Z). Trigger benchmark-baseline to refresh.