## Refactor: Prepare frontend record layouts for backend-driven
configuration
This PR simplifies and prepares the frontend record layout system for
eventual migration to backend-driven layouts, aligning the architecture
with the existing PageLayout system used for dashboards.
### Key Changes
**Architecture Improvements:**
- Created unified LayoutRenderingContext that works for both record
pages (with targetRecord) and dashboards (standalone)
- Replaced prop drilling with context-based data flow - cards access
targetRecord and isInRightDrawer via context hooks
- Introduced useTargetRecord() helper hook that provides type-safe
access to the current record
- Created generic CardRenderer component that handles configuration
injection and context guards uniformly
**Configuration System:**
- Converted all tab icons from React components to JSON-serializable
strings (e.g., Icon: IconCheckbox → icon: 'IconCheckbox')
- Added configuration field to cards, matching the widget configuration
pattern on the backend
- Created CardConfiguration types system similar to WidgetConfiguration
on the backend
- Moved widget-specific props (like showDuplicatesSection) into
configuration objects
**Code Organization:**
- Extracted visibility evaluation logic into reusable
evaluateTabVisibility() utility
- Organized layouts into dedicated files (one per object:
base-record-layout.ts, company-record-layout.ts, etc.)
- Renamed components to match their purpose: Notes → NotesCard,
Attachments → FilesCard, etc.
- Consolidated card rendering from registry object to direct
getCardComponent() function
**API Alignment:**
- Made ifNoReadPermissionObject an explicit part of TabVisibilityConfig
(follows if* naming convention)
- Removed redundant targetObjectNameSingular from tab-level (now derived
from visibility config)
- Card API now mirrors Widget API (both use type, configuration,
accessed via context)
