feat: Migrate document parsing to Aliyun and update embedding configurations

- Updated LocalDocumentParser to include raw_layouts and artifact_prefix from settings.
- Added new documents with failure reasons and metadata to documents.json for better error tracking.
- Created a new documentation file detailing the Aliyun ingest implementation process.
- Updated RFC to reflect changes in the parsing backend and embedding dimensions.
- Modified tests to accommodate the new embedding dimension of 1024 and updated parser and chunk builder assertions.
- Verified migration configurations to ensure correct settings for embedding model and backend.

backend/app/infrastructure/parser/local_document_parser.py

@@ -4,6 +4,7 @@ from __future__ import annotations
 
 from pathlib import Path
 
+from app.config.settings import settings
 from app.domain.documents import DocumentParser, ParsedDocument
 from app.services.parser.docx_parser import parse_docx_to_markdown
 from app.services.parser.pdf_parser import parse_pdf_to_markdown
@@ -34,5 +35,10 @@ class LocalDocumentParser(DocumentParser):
             vector_chunks=[],
             parser_name=self.parser_name,
             raw_text=markdown_text,
-            metadata={"source": "local_parser", "file_suffix": suffix},
+            raw_layouts=[],
+            metadata={
+                "source": "local_parser",
+                "file_suffix": suffix,
+                "artifact_prefix": settings.document_parse_artifact_prefix,
+            },
         )