feat: auto-append /v1 to embedding_api_base in OpenAI embedding provider (#6863)

* fix: auto-append /v1 to embedding_api_base in OpenAI embedding provider (#6855)

When users configure `embedding_api_base` without the `/v1` suffix,
the OpenAI SDK does not auto-complete it, causing request path errors.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

* fix: ensure API base URL for OpenAI embedding ends with /v1 or /v4

---------

Co-authored-by: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Co-authored-by: Soulter <905617992@qq.com>

Author: 3 people

astrbot/core/provider/sources/openai_embedding_source.py

@@ -24,9 +24,15 @@ def __init__(self, provider_config: dict, provider_settings: dict) -> None:
         if proxy:
             logger.info(f"[OpenAI Embedding] {provider_id} Using proxy: {proxy}")
             http_client = httpx.AsyncClient(proxy=proxy)
-        api_base = provider_config.get(
-            "embedding_api_base", "https://api.openai.com/v1"
-        ).strip()
+        api_base = (
+            provider_config.get("embedding_api_base", "https://api.openai.com/v1")
+            .strip()
+            .rstrip("/")
+            .rstrip("/embeddings")
+        )
+        if api_base and not api_base.endswith("/v1") and not api_base.endswith("/v4"):
+            # /v4 see #5699
+            api_base = api_base + "/v1"
         logger.info(f"[OpenAI Embedding] {provider_id} Using API Base: {api_base}")
         self.client = AsyncOpenAI(
             api_key=provider_config.get("embedding_api_key"),