Go: implement provider: PaddleOCR_Local (#15158)

### What problem does this PR solve?

Go: implement provider: PaddleOCR_Local

**Verified from CLI**

```
RAGFlow(user)> ocr with 'PaddleOCR-VL@test@paddleocr_local' file './internal/test1.jpg'
+----------------------+
| text                 |
+----------------------+
| ## Parallel to these |
+----------------------+
```

### Type of change

- [X] Bug Fix (non-breaking change which fixes an issue)
- [X] New Feature (non-breaking change which adds functionality)
- [X] Refactoring

conf/models/gitee.json

@@ -8,7 +8,7 @@
     "models": "models",
     "status": "",
     "balance": "tokens/packages/balance",
-    "embedding": "embedding",
+    "embedding": "embeddings",
     "rerank": "rerank",
     "ocr": "images/ocr",
     "doc_parse": "async/documents/parse",

conf/models/mineru_local.json

@@ -1,5 +1,5 @@
 {
-  "name": "mineru_local",
+  "name": "MinerU_local",
   "url_suffix": {
     "doc_parse": "file_parse",
     "task": "tasks"

conf/models/paddleocr_local.json

@@ -0,0 +1,7 @@
+{
+  "name": "PaddleOCR_Local",
+  "url_suffix": {
+    "ocr": "layout-parsing"
+  },
+  "class": "local"
+}

conf/models/togetherai.json

@@ -57,7 +57,7 @@
     },
     {
       "name": "mixedbread-ai/mxbai-rerank-large-v2",
-      "max_tokens": "16384",
+      "max_tokens": 16384,
       "model_types": [
         "rerank"
       ]
@@ -76,3 +76,4 @@
     }
   ]
 }
+

conf/models/zhipu-ai.json

@@ -12,7 +12,8 @@
     "asr": "audio/transcriptions",
     "tts": "audio/speech",
     "files": "files",
-    "models": "models"
+    "models": "models",
+    "ocr": "layout_parsing"
   },
   "class": "glm",
   "models": [
@@ -268,6 +269,12 @@
       "model_types": [
         "rerank"
       ]
+    },
+    {
+      "name": "glm-ocr",
+      "model_types": [
+        "ocr"
+      ]
     }
   ]
 }