feat: add document pipeline — PDF decoder, Ollama LLM, storage services

Add end-to-end document processing pipeline:
- PDF decoder service (pdfjs-dist) extracts text per page from librarian docs
- Ollama native LLM service for local model inference
- FalkorDB triples store FlowProcessor consumer
- Qdrant graph embeddings store FlowProcessor consumer
- Fix spec name collisions in chunker/extractor (input→chunk-input, etc.)
- Gateway /load endpoint to trigger document processing
- Align flow manager blueprint and seed config with full pipeline topics
- Add runner scripts and test coverage for document load

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

ts/packages/base/src/schema/messages.ts

@@ -151,6 +151,12 @@ export interface PipelineMetadata {
   collection: string;
 }
 
+/** Document message — triggers the decode pipeline for a librarian document. */
+export interface Document {
+  metadata: PipelineMetadata;
+  documentId: string;
+}
+
 export interface TextDocument {
   metadata: PipelineMetadata;
   text: string;