refactor: consolidate managed configs and switch go/tool-versions to mise

Reorganize symlinked configs from .config-source to .managed directory for better clarity on auto-updated vs manual files. Add mise config.toml to replace .tool-versions, pin zoxide and deno versions. Remove Go from PATH templates since it's now managed via mise.

home/.managed/lazygit/config.yml

@@ -0,0 +1,23 @@
+gui:
+  theme:
+    activeBorderColor:
+      - "#E97387"
+      - bold
+    inactiveBorderColor:
+      - "#a5adce"
+    optionsTextColor:
+      - "#8caaee"
+    selectedLineBgColor:
+      - "#ECCFD3"
+    cherryPickedCommitBgColor:
+      - "#51576d"
+    cherryPickedCommitFgColor:
+      - "#CFF2E2"
+    unstagedChangesColor:
+      - "#E97387"
+    defaultFgColor:
+      - "#6B6B6B"
+    searchingActiveBorderColor:
+      - "#e5c890"
+    authorColors:
+      "*": "#babbf1"