加 .gitignore，并把 28 个运行期产物移出版本库

## 为什么

35534b1 把 logs/*.log.gz（10 个）与 __pycache__/*.pyc（18 个）
一起提交了，而仓库**根本没有 .gitignore** —— 那不是手误，是缺一道门。

已 `git rm --cached` 那 28 个（磁盘文件保留，只是不再跟踪）。

## 覆盖三类

① 运行期产物：logs/ *.log.gz __pycache__/ .pytest_cache/ …
② **加载器/mod 的运行时配置**：config/ shaderpacks/ options.txt saves/
   datapacks/ resourcepacks/
   ★ 这类属于**实例**，不属于仓库。实测踩过：Sodium 往**进程 cwd**
     写了 config/sodium-mixins.properties，落进了仓库根。
     根因已修（base.py：cwd=self.cwd or self.game_dir，让运行时产物
     落进实例目录），这里再兜一层。
③ 构建缓存：.mcfold-tools/ build/ dist/ *.egg-info/

.gitignore

@@ -0,0 +1,28 @@
+# ── 运行期产物（绝不该进版本库）────────────────────────────
+# ★ 这两类都曾被误提交过（35534b1 把 logs/ 与 __pycache__/ 一起带进去，
+#   共 28 个文件）—— 根因是没有 .gitignore。
+logs/
+*.log
+*.log.gz
+
+__pycache__/
+*.py[cod]
+.pytest_cache/
+.mypy_cache/
+.ruff_cache/
+
+# ── 加载器/mod 的运行时配置（属于**实例**，不属于仓库）────────
+# ★ Sodium 等会往**进程 cwd** 写 config/；正确落点应是实例目录
+#   （base.py 已修：cwd=self.cwd or self.game_dir）。这里再兜一层。
+config/
+shaderpacks/
+options.txt
+saves/
+datapacks/
+resourcepacks/
+
+# ── 构建/工具缓存 ─────────────────────────────────────────
+.mcfold-tools/
+build/
+dist/
+*.egg-info/

logs/latest.log

@@ -1,62 +0,0 @@
-[00:23:03] [Datafixer Bootstrap/INFO]: 188 Datafixer optimizations took 79 milliseconds
-[00:23:04] [main/INFO]: Environment: authHost='https://authserver.mojang.com', accountsHost='https://api.mojang.com', sessionHost='https://sessionserver.mojang.com', servicesHost='https://api.minecraftservices.com', name='PROD'
-[00:23:05] [main/ERROR]: Failed to verify authentication
-com.mojang.authlib.exceptions.InvalidCredentialsException: Status: 401
-	at com.mojang.authlib.exceptions.MinecraftClientHttpException.toAuthenticationException(MinecraftClientHttpException.java:56) ~[authlib-4.0.43.jar:?]
-	at com.mojang.authlib.yggdrasil.YggdrasilUserApiService.fetchProperties(YggdrasilUserApiService.java:156) ~[authlib-4.0.43.jar:?]
-	at com.mojang.authlib.yggdrasil.YggdrasilUserApiService.<init>(YggdrasilUserApiService.java:55) ~[authlib-4.0.43.jar:?]
-	at com.mojang.authlib.yggdrasil.YggdrasilAuthenticationService.createUserApiService(YggdrasilAuthenticationService.java:124) ~[authlib-4.0.43.jar:?]
-	at net.minecraft.client.Minecraft.createUserApiService(SourceFile:733) ~[client-named.jar:?]
-	at net.minecraft.client.Minecraft.<init>(SourceFile:442) ~[client-named.jar:?]
-	at McfoldRenderServer.boot(McfoldRenderServer.java:788) ~[classes/:?]
-	at McfoldRenderServer.main(McfoldRenderServer.java:113) ~[classes/:?]
-Caused by: com.mojang.authlib.exceptions.MinecraftClientHttpException: Status: 401
-	at com.mojang.authlib.minecraft.client.MinecraftClient.readInputStream(MinecraftClient.java:85) ~[authlib-4.0.43.jar:?]
-	at com.mojang.authlib.minecraft.client.MinecraftClient.get(MinecraftClient.java:48) ~[authlib-4.0.43.jar:?]
-	at com.mojang.authlib.yggdrasil.YggdrasilUserApiService.fetchProperties(YggdrasilUserApiService.java:129) ~[authlib-4.0.43.jar:?]
-	... 6 more
-[00:23:05] [main/INFO]: Setting user: mcfold_cam
-[00:23:05] [main/INFO]: Backend library: LWJGL version 3.3.1 build 7
-[00:23:05] [main/INFO]: [STDERR]: [LWJGL] [ThreadLocalUtil] Unsupported JNI version detected, this may result in a crash. Please inform LWJGL developers.
-[00:23:05] [main/WARN]: Attempted to end step for load_time_pre_window_ms before starting it
-[00:23:06] [main/INFO]: Reloading ResourceManager: vanilla
-[00:23:06] [Worker-Main-3/INFO]: Found unifont_all_no_pua-15.0.06.hex, loading
-[00:23:06] [main/INFO]: [STDERR]: [mcfold] Minecraft constructed
-[00:24:06] [main/INFO]: [STDERR]: [mcfold]   TIMEOUT TextureManager
-[00:24:06] [main/WARN]: Missing sound for event: minecraft:item.goat_horn.play
-[00:24:06] [main/WARN]: Missing sound for event: minecraft:entity.goat.screaming.horn_break
-[00:24:06] [main/ERROR]: Error starting SoundSystem. Turning off sounds & music
-java.lang.IllegalStateException: Failed to open OpenAL device
-	at com.mojang.blaze3d.audio.Library.openDeviceOrFallback(SourceFile:283) ~[client-named.jar:?]
-	at com.mojang.blaze3d.audio.Library.init(SourceFile:153) ~[client-named.jar:?]
-	at net.minecraft.client.sounds.SoundEngine.loadLibrary(SourceFile:116) ~[client-named.jar:?]
-	at net.minecraft.client.sounds.SoundEngine.reload(SourceFile:106) ~[client-named.jar:?]
-	at net.minecraft.client.sounds.SoundManager.apply(SourceFile:125) ~[client-named.jar:?]
-	at net.minecraft.client.sounds.SoundManager.apply(SourceFile:40) ~[client-named.jar:?]
-	at net.minecraft.server.packs.resources.SimplePreparableReloadListener.lambda$reload$1(SourceFile:13) ~[client-named.jar:?]
-	at java.util.concurrent.CompletableFuture$UniAccept.tryFire(CompletableFuture.java:718) ~[?:?]
-	at java.util.concurrent.CompletableFuture$Completion.run(CompletableFuture.java:482) ~[?:?]
-	at java.util.concurrent.CompletableFuture.uniAcceptNow(CompletableFuture.java:754) ~[?:?]
-	at java.util.concurrent.CompletableFuture.uniAcceptStage(CompletableFuture.java:735) ~[?:?]
-	at java.util.concurrent.CompletableFuture.thenAcceptAsync(CompletableFuture.java:2223) ~[?:?]
-	at net.minecraft.server.packs.resources.SimplePreparableReloadListener.reload(SourceFile:13) ~[client-named.jar:?]
-	at McfoldRenderServer.reloadResources(McfoldRenderServer.java:1146) ~[classes/:?]
-	at McfoldRenderServer.boot(McfoldRenderServer.java:792) ~[classes/:?]
-	at McfoldRenderServer.main(McfoldRenderServer.java:113) ~[classes/:?]
-[00:24:06] [main/INFO]: Found unifont_all_no_pua-15.0.06.hex, loading
-[00:24:06] [main/INFO]: Created: 1024x512x4 minecraft:textures/atlas/blocks.png-atlas
-[00:24:06] [main/INFO]: Created: 256x256x4 minecraft:textures/atlas/signs.png-atlas
-[00:24:06] [main/INFO]: Created: 512x512x4 minecraft:textures/atlas/shield_patterns.png-atlas
-[00:24:06] [main/INFO]: Created: 512x512x4 minecraft:textures/atlas/banner_patterns.png-atlas
-[00:24:06] [main/INFO]: Created: 1024x1024x4 minecraft:textures/atlas/armor_trims.png-atlas
-[00:24:06] [main/INFO]: Created: 128x64x4 minecraft:textures/atlas/decorated_pot.png-atlas
-[00:24:06] [main/INFO]: Created: 256x256x4 minecraft:textures/atlas/chest.png-atlas
-[00:24:06] [main/INFO]: Created: 512x256x4 minecraft:textures/atlas/beds.png-atlas
-[00:24:06] [main/INFO]: Created: 512x256x4 minecraft:textures/atlas/shulker_boxes.png-atlas
-[00:24:07] [main/WARN]: Shader rendertype_entity_translucent_emissive could not find sampler named Sampler2 in the specified shader program.
-[00:24:07] [main/INFO]: Created: 256x256x0 minecraft:textures/atlas/particles.png-atlas
-[00:24:07] [main/INFO]: Created: 256x256x0 minecraft:textures/atlas/paintings.png-atlas
-[00:24:07] [main/INFO]: Created: 128x128x0 minecraft:textures/atlas/mob_effects.png-atlas
-[00:24:07] [main/INFO]: [STDERR]: [mcfold] resources reloaded
-[00:24:07] [main/WARN]: Shader rendertype_entity_translucent_emissive could not find sampler named Sampler2 in the specified shader program.
-[00:24:07] [main/INFO]: [STDERR]: [mcfold] boot done