[Feature] Faceted refinement workflow on top of existing search

I have searched the existing feature requests, both open and closed, to make sure this is not a duplicate request. • Yes The feature Immich already provides powerful search and a basic set of filters. This request is not about adding new metadata dimensions. It’s about evolving the existing search/filter UI into a more “faceted refinement” workflow: users can iteratively narrow down large result sets with persistent, easily adjustable filters (explore → refine → adjust), with minimal UI friction. Motivation For large libraries, timeline browsing and free-text search alone are often not enough for efficient discovery. Immich’s search is strong, but the current filtering workflow is still fairly basic and makes iterative refinement harder than it needs to be—especially when working with large result lists. Users need a structured way to narrow down large result sets and explore the library efficiently. Proposal (UX / workflow on top of existing search) Build on Im…