Jin Hai d32e05d560 Go: add more file parser (#15979) ...

### What problem does this PR solve?

Now we can parse 'pptx', 'ppt', 'doc', 'xls', 'xlsx'

```
RAGFlow(api/default)> parse file 'test.pptx';
Parsing PPTX file: test.pptx
Document format: pptx
```

### Type of change

- [x] New Feature (non-breaking change which adds functionality)

Signed-off-by: Jin Hai <haijin.chn@gmail.com>

2026-06-12 23:28:14 +08:00

..

chunk

Go: parse ingestion DSL (#15938)

2026-06-12 17:58:36 +08:00

parser

Go: add more file parser (#15979)

2026-06-12 23:28:14 +08:00

chunk_engine_test.go

Go: parse ingestion DSL (#15938)

2026-06-12 17:58:36 +08:00

chunk_engine.go

Go: parse ingestion DSL (#15938)

2026-06-12 17:58:36 +08:00

ingestion_service.go

Go: parse ingestion DSL (#15938)

2026-06-12 17:58:36 +08:00