Initial commit: in-process object_info cache + refresh UI

ComfyUI-Tenaciousload speeds up ComfyUI page loads for large model/LoRA
collections by caching the slow /api/object_info response in memory and on
disk (survives restarts) and serving it gzipped in ~milliseconds, instead of
rebuilding it (and freezing the event loop) on every load.

Adds a "Refresh Models / LoRAs" menu button, a graph node, and a
POST /tenaciousload/refresh endpoint to rebuild the cache after adding or
removing models. No external dependencies; no nginx/docker required.

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

requirements.txt

@@ -0,0 +1,9 @@
+# ComfyUI-Tenaciousload has NO external dependencies.
+# Everything it uses is either the Python standard library
+# (os, gzip, json, logging, threading) or already provided by ComfyUI:
+#   - aiohttp  (ComfyUI's web server, aiohttp>=3.11.8)
+#   - folder_paths, server  (ComfyUI internal modules)
+#
+# Requirements to run:
+#   - ComfyUI (any recent version; tested on 0.23.0)
+#   - Python >= 3.8