Adds a new "Render Overrides" panel under the active drawing that applies
render effects to IFC elements selected by a filter. Each drawing holds a
list of rules; each rule has its own filter (reusing the shared Search
filter system) plus exposure, gamma, and transparency.

Effects use the mechanism that can actually show them:
- Exposure/gamma: compositor nodes masked per rule via Cryptomatte, built
  just before a render and torn down after. Cryptomatte (not the Object
  Index pass) is used because EEVEE Next always renders Object Index as 0
  (Blender #121690); it works in both EEVEE and Cycles.
- Transparency: a temporary Transparent-BSDF material applied to the matched
  objects so the geometry behind shows through. Because it is a real material
  it also shows live in the Rendered viewport (WYSIWYG), and is restored after
  the render / on toggle off / before save.

The single enable toggle drives both render and live viewport preview.
Switching the active drawing (msgbus on scene.camera) re-syncs the preview
and auto-enables a drawing that already has rules. Editing a rule's filter
query (including clearing it) updates the preview immediately.

Rules are persisted to the IFC model at EPset_Drawing.RenderOverrides (JSON,
declared in the pset template as IfcText), so they travel with the drawing:
written on add/remove and on save, read back on file load and IFC import
(via data.refresh / refresh_ui_data, since load_post fires before the import
creates the cameras).

The override only runs where the compositor does (F12 and Default-render
drawing underlays); the panel disables the toggle when the applied
CurrentShadingStyle is not a Default render type.

Files:
- bim/module/status_render/: new module (operator, prop, ui, data, NOTES)
- bim/__init__.py: register the module
- bim/data/pset/EPset_Drawing.ifc: add RenderOverrides property template
- tool/search.py: status_render filter resolver, on_filter_query_edited
  dispatch, graceful empty-query handling
- bim/module/search/operator.py: notify on_filter_query_edited after edits

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