fix(llama-cpp): include server-chat.cpp in grpc-server translation unit (#9511)

* fix(llama-cpp): include server-chat.cpp in grpc-server translation unit

Upstream llama.cpp refactor (ggml-org/llama.cpp#20690) moved the
OAI/Anthropic/Responses and transcription conversion helpers out of
server-common.cpp into a new server-chat.cpp, and server-task.cpp and
server-context.cpp now call those symbols (convert_transcriptions_to_chatcmpl,
server_chat_convert_responses_to_chatcmpl, server_chat_convert_anthropic_to_oai,
server_chat_msg_diff_to_json_oaicompat) via server-chat.h.

grpc-server.cpp builds as a single translation unit by #include-ing the
upstream .cpp files directly. Without including server-chat.cpp, the
declarations are satisfied at compile time via server-chat.h but the
link step fails with undefined references once LLAMA_VERSION crosses
the refactor commit (134d6e54).

Guard the include with __has_include so the same source stays buildable
on older LLAMA_VERSION pins that predate the refactor (where prepare.sh
won't copy server-chat.cpp into tools/grpc-server/).

Assisted-by: Claude:claude-opus-4-7 [Claude Code]
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

* chore(llama-cpp): bump LLAMA_VERSION to 0d0764dfd

Bump to ggml-org/llama.cpp@0d0764d.
Paired with the preceding grpc-server server-chat.cpp include so the
refactor at 134d6e54 links cleanly. Supersedes PR #9494.

Assisted-by: Claude:claude-opus-4-7 [Claude Code]
Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

---------

Signed-off-by: Ettore Di Giacinto <mudler@localai.io>

Author: mudler

backend/cpp/llama-cpp/Makefile

@@ -1,5 +1,5 @@
 
-LLAMA_VERSION?=5a4cd6741fc33227cdacb329f355ab21f8481de2
+LLAMA_VERSION?=0d0764dfd257c0ae862525c05778207f87b99b1c
 LLAMA_REPO?=https://github.com/ggerganov/llama.cpp
 
 CMAKE_ARGS?=

backend/cpp/llama-cpp/grpc-server.cpp

@@ -10,6 +10,14 @@
 #include "server-task.cpp"
 #include "server-queue.cpp"
 #include "server-common.cpp"
+// server-chat.cpp exists only in llama.cpp after the upstream refactor that
+// split OAI/Anthropic/Responses/transcription conversion helpers out of
+// server-common.cpp. When present, server-context.cpp and server-task.cpp
+// above call into it, so we must pull its definitions into this TU or the
+// link fails. __has_include keeps the source compatible with older pins.
+#if __has_include("server-chat.cpp")
+#include "server-chat.cpp"
+#endif
 #include "server-context.cpp"
 
 // LocalAI