Enhance model linking with CivitAI integration and UI improvements.
- __init__.py: Expand model path resolution by building filename→path lookup (including no-ext keys) and using folder_paths to map common categories; add a /model_linker/civitai-search POST route that attempts metadata/hash-based lookup (or filename fallback) and returns CivitAI model/version info for the frontend.
- core/sources/civitai.py: Add hashing and metadata handling utilities: _get_sha256_hash, metadata discovery/reading, helpers to extract images/trained-words, get_model_info_by_hash and get_model_info_for_file (which prefers local metadata and otherwise queries CivitAI by hash). Also tidy/normalize existing search/resolve functions and add caching for hash lookups.
- web/linker.js: Add a right-click context menu for model chips with actions (Show Info, Open in CivitAI), implement dialog UI to display model info, and wire calls to the new civitai-search endpoint. Includes positioning/closing behavior and dialog population from returned data.
These changes enable accurate model identification via local metadata or sha256 lookups on CivitAI and provide convenient frontend actions to view model details or open CivitAI pages.
Dariusz L
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