dsh-research-refs: A Citation Standardization Toolchain

`dsh-research-refs` is a DeepSeek Harness (DSH) plugin for automatically processing messy citation data. It is code-driven and includes five core steps: parsing unstructured text, validating and completing records via Crossref, automatic deduplication, formatting to standards such as GB/T 7714-2015 and APA, and generating an output list. The plugin supports online validation with fallback handling, helping agents quickly produce standardized references.