First feature extracted from core into a plugin per "plugin is the product",
mirroring the notifications plugin. KB is a NON-asset plugin: it contributes a
model + blueprint + nav item but registers no AssetType.
- plugins/knowledgebase/: manifest.json (api_prefix /api/knowledgebase, no deps),
models/ (KnowledgeBase, contract-pure imports via shopdb.api), api/ (the
blueprint, same routes/prefix so the frontend is unchanged), plugin.py
(get_blueprint + get_models + get_navigation_items).
- De-cored: removed shopdb/core/models/knowledgebase.py + api/knowledgebase.py,
their __init__ exports, and 'knowledgebase' from CORE_BLUEPRINT_NAMES; dropped
the hardcoded KB nav item from dashboard.py (now via the plugin nav hook).
- search.py and reports.py lazy-import KnowledgeBase from the plugin and degrade
gracefully (search skips via _require_enabled when disabled; kb-popularity
report returns 503 if the plugin is absent).
- Registered in instance/plugins.json (enabled).
The knowledgebase table stays in the core Alembic chain (bundled-plugin schema
folded into core, ADR-004); the model just maps it. KB was never in the
shopdb.api contract surface, so no __contract_version__ bump.
Pinned with characterization tests first (test_knowledgebase.py); they pass
unchanged against the plugin blueprint. 163 tests pass, naming green, app boots
7 bundled plugins, KB endpoint/nav/search verified live.
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>