add model weights via Git LFS, fix HF Space build

- Remove results/ and *.pth from .gitignore so weights enter version control
- Track four training weights (vanilla/double/dueling/double_dueling) via LFS
- .gitattributes already had *.pth filter=lfs configured

Dockerfile COPY results/best_model_train_*.pth will now resolve correctly
on HuggingFace Spaces build.

.gitignore

@@ -23,11 +23,9 @@ coverage.xml
 *.xml
 .pytest_cache/
 
-# ── 训练产物（权重统一存放于 HF Spaces，不进 GitHub）─────────────────────────
+# ── 训练产物（runs/logs 不进版本控制；权重通过 Git LFS 追踪）─────────────────
 runs/
 logs/
-results/
-*.pth
 
 # ── IDE ───────────────────────────────────────────────────────────────────────
 .idea/

results/best_model_train_double.pth

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:42b26b8e7faeee7e4d1ac2980e883b41dea8f7ec1014bf354b71414087ec6aa6
+size 6788376

results/best_model_train_double_dueling.pth

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:fc7038a0ceed88d0b6e9a9a95c74ac5b49c8948cc6da5aa75cf19cddd0e3ca64
+size 13345564

results/best_model_train_dueling.pth

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:f4124a0facc716661d7d3bf35417729f365f9ee37a2819a4feea04e6f8cb9a5f
+size 13345374

results/best_model_train_vanilla.pth

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:25bd7427d9af7e7464fa15ec652ed2cf25cdf7b07781e332144931aa1d5f2ad1
+size 6788390