JARVIS AIO v6.55.0

[6.55.0] — Document RAG: JARVIS reads your manuals

The last un-built agent from the home-agent blueprint. JARVIS can now
answer from the household's own paperwork: drop appliance manuals and
receipts (PDF, .txt, .md) into /config/jarvis/documents, ingest them,
and ask "what's the furnace filter size?" or "when did we buy the
dishwasher?" — it retrieves the relevant excerpt and answers, citing the
source document, instead of guessing.

Built on the same ChromaDB the memory system already runs, but as a
separate collection — a manual isn't a conversation turn, and a furnace
query shouldn't surface old chats. Documents are chunked with overlap on
paragraph/sentence boundaries for good recall, embedded via Chroma's
default function (no extra model dependency), cosine-scored. When ChromaDB
isn't installed it falls back to FTS5 keyword search in the existing
jarvis.db, so retrieval works on a minimal install too. PDF text
extraction degrades honestly across pypdf / pdfplumber / PyPDF2 and, if
none is present, says so and skips the file rather than crashing — plain
text always works. pypdf is now a manifest requirement so PDFs work out
of the box.

Two agent tools (search_documents, ingest_documents), a
jarvis/documents WS command, and a Document Library panel in Settings
with an ingest button, live source list, and a test-search box. 17 unit
tests (the pure chunker, extraction routing, ingest/search through a
simulated collection, honest fallbacks) plus 4 panel smoke checks.

This completes every blueprint agent that belongs inside Home Assistant.

Full Changelog: 6.54.0...6.55.0