* feat(rag): add subject/collection organization to knowledge base
- Add nullable collection field to KbIngestState, propagated through the
embed job, RAG service, and Qdrant point payloads (indexed for filtering)
- Add upload-time category selection and per-file collection reassignment
in the Knowledge Base modal, with a filterable Stored Files table
- Add a 'Search in' collection filter to the chat interface, threaded
through to searchSimilarDocuments as an optional Qdrant filter
- Fix .docx extraction: previously routed through raw-text extraction
(garbage output for a ZIP-based XML format); adds a proper mammoth-based
extractor and a dedicated 'docx' file-type case
* feat(rag): support dynamic KB collection creation, rename, and removal
Extends collection organization with a Manage Collections UI: collections
are created on the fly when a file is assigned to a new name, can be
renamed (bulk-updates every tagged file and Qdrant point), and can be
removed (reassigns tagged files back to Uncategorized rather than
deleting anything).
* fix(rag): use dynamic collections query in chat search filter
chat/index.tsx still imported the static KB_COLLECTIONS constant for its
'Search in' dropdown, inconsistent with KnowledgeBaseModal.tsx which already
uses the live getKnowledgeCollections() query. Renamed/added collections
via the new Manage Collections UI weren't reflected in the chat filter.
* feat(rag): broaden preset tags and add creatable collection combobox
Replaces the survival-specific preset list with general-purpose starter
tags (recipes, diy, health, technology, finance, travel, hobbies,
reference, survival, energy) so the Knowledge Base reads well for
home-lab/reference use, not just prepping.
Adds sanitizeCollectionName() (trim, lowercase, length cap) applied on
every write path server-side, and a dependency-free CollectionCombobox
component replacing the plain <select> + window.prompt pattern for
tagging — autocompletes against presets + tags already in use, with a
'+ Create' option for anything new.
* chore(rag): remove .docx fix from this branch, split into #1100
Per review feedback, the .docx extraction fix is unrelated to the
collections feature and can merge independently. Moved to a standalone
PR (Crosstalk-Solutions/project-nomad#1100) off dev.
* chore: remove unrelated diff noise (lockfile, comments, indentation)
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Co-authored-by: John Cortright <jcortright@zscaler.com>
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