Expose long-text fields as input sockets (forceInput)

axes, reference_description, system_prompt, user_prompt now render as INPUT
SOCKETS (forceInput) so they can be wired from other nodes — e.g. describe's
canonical output -> compare's reference_description, or a text node -> chat
prompts. Small config (report_dir, run_tag, model_path, ...) stays as typeable
fields. Unconnected sockets fall back to sensible defaults; the agent/bridge can
still set them by value via the API. Dropped the now-socket fields from the
example workflows; bumped their max_new_tokens to 2048.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

workflow/workflow_describe_api.json

@@ -12,8 +12,7 @@
       "profile": "general",
       "model_path": "/media/p5/qwen3vl_4b_abliterated_comfy_convert/hf_bf16",
       "precision": "bf16",
-      "axes": "",
-      "max_new_tokens": 1024,
+      "max_new_tokens": 2048,
       "temperature": 0.0,
       "swap_eval": false,
       "keep_loaded": true,