infra(ai): consolidate fleet Ollama consumers onto GX10 VIP 10.0.57.201

Repoints fc-chat, fc-ttsreader, knowledge, fc-llm-bridge (off the slow edge1
Pi5 10.0.57.17) and intranet (off the reimaged BLUEJAY-AI test laptop
10.0.56.132) to the GX10 (DGX Spark / GB10) Ollama over the PROD MetalLB VIP
10.0.57.201. GX10 serves gemma3:12b/gemma3:4b/qwen2.5:1.5b/nomic-embed-text/
llama3.2:1b on local NVMe, warm-pinned (keep_alive=-1).

fc-chat default model qwen2.5-coder:7b -> gemma3:12b (the coder model won't
pull reliably on the GX10; gemma3:12b is the warm fleet default + a better
general-chat model). Other consumers keep their exact models. Inline comments
referencing edge1/BLUEJAY-AI are now historical; the values are the GX10 VIP.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

apps/intranet/intranet.yaml

@@ -92,7 +92,7 @@ spec:
             # down. Bulk embed runs in the background; /health does not depend on it.
             # Memory: feedback_pi5_nomic_embed_slow.
             - name: IntranetSearch__OllamaBaseUrl
-              value: "http://10.0.56.132:11434"
+              value: "http://10.0.57.201:11434"
             # Notes docs corpus IS now mounted at /srv/flowercore-notes (see the
             # notes-corpus-clone initContainer + notes-corpus-sync sidecar), so the
             # IntranetSearch indexer is ENABLED. First-boot bulk embed of the corpus