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### What problem does this PR solve? Closes https://github.com/infiniflow/ragflow/issues/14571. Adds CAJAL as a first-class local scientific-writing option in RAGFlow: - registers `agnuxo/cajal-4b-p2pclaw` as a known Ollama chat model with a 32K context setting - adds a built-in “CAJAL scientific paper agent” template under the existing agent template catalog - preconfigures the agent for grounded scientific writing: retrieval first, citation traceability, LaTeX-ready output, and explicit limitations when evidence is missing - adds unit coverage to ensure the template normalizes through RAGFlow’s production template loader, keeps graph form data in sync, and exposes the Ollama model option Behavior/evidence gathered for the requested model: - Hugging Face model metadata for `Agnuxo/CAJAL-4B-P2PCLAW` reports `pipeline_tag=text-generation` and tags including `gguf`, `llama.cpp`, `vllm`, `scientific-research`, `papers`, `academic-writing`, `latex`, and `license:apache-2.0`. - The model card documents CAJAL as a 4B scientific paper generation model with 32K context, local inference, LaTeX/citation specialization, and CPU-only support around 5 tok/s on Ryzen 7 5800X. - Local CPU generation could not be completed on this machine because the advertised Ollama model name is not currently resolvable from Ollama’s registry: both `https://registry.ollama.ai/v2/agnuxo/cajal-4b-p2pclaw/manifests/latest` and `https://registry.ollama.ai/v2/library/agnuxo/cajal-4b-p2pclaw/manifests/latest` returned `404 Not Found`; the Hugging Face repo tree currently exposes an 8.4 GB `model.safetensors` but no GGUF artifact in `main`. The template therefore targets the documented Ollama model name for users who have the local CAJAL deployment/model file available. Verification run locally: ```bash python3 -m pytest test/test_cajal_template_unit.py -q # 3 passed in 0.34s python3 - <<'PY' import json, glob for f in sorted(glob.glob('agent/templates/*.json') + ['conf/llm_factories.json']): with open(f, encoding='utf-8') as fp: json.load(fp) print('json_ok') PY # json_ok python3 -m ruff check test/test_cajal_template_unit.py # All checks passed! git diff --check ``` `uv run pytest test/testcases/test_web_api/test_agent_app/test_cajal_template_unit.py -q` was also attempted first, but dependency setup failed before test collection while building `ormsgpack==1.5.0` from uv with a package metadata parse error. Clearing uv’s `ormsgpack` cache and retrying reproduced the same build failure, so the focused unit test was run with the system Python environment instead. ### Type of change - [ ] Bug Fix (non-breaking change which fixes an issue) - [x] New Feature (non-breaking change which adds functionality) - [ ] Documentation Update - [ ] Refactoring - [ ] Performance Improvement - [ ] Other (please describe): --------- Co-authored-by: sxxtony <sxxtony@users.noreply.github.com> Co-authored-by: yzc <yzc@users.noreply.github.com> Co-authored-by: Zhichang Yu <yuzhichang@gmail.com>