fix: resolve shell startup errors and streamline tool management

- Guard brew shellenv in fish config with test -x for Linux compat
- Pin Python to 3.13 with compile=true (freethreaded builds broken)
- Pin neovim, go, terraform, aws-cli, cmake, dotnet-ef to stable versions
- Remove hugo and gdu from mise (unused / broken upstream)
- Comment out pipx-backed tools (mise can't find uvx when self-managed)
- Move mise [settings] above [tools] with pipx.uvx=true
- Fix dnf group name for dnf5 (development-tools lowercase)
- Remove vendored fzf binary (now managed by mise)
- Simplify Dotbot: force-relink mise config, targeted ~/.local clean,
  remove fzf custom linking (now via standard ~/.config/ glob)
- Fix lint gate hook to find yarn via mise shims

install.conf.yaml

@@ -5,8 +5,10 @@
     ~/:
     ~/.config:
       recursive: true
-    ~/.local:
+    ~/.local/bin:
+    ~/.local/man:
       recursive: true
+    ~/.local/share:
     ~/.ssh:
       recursive: true
 
@@ -35,12 +37,16 @@
       glob: true
       path: base/*
       prefix: "."
+    # mise config — force-relink because mise may create the file before Dotbot runs
+    ~/.config/mise/config.toml:
+      force: true
+      path: config/mise/config.toml
     # Most of the configs
     ~/.config/:
       glob: true
       relink: true
       path: config/*
-      exclude: [config/fzf, config/op]
+      exclude: [config/op, config/mise]
     # 1Password CLI plugins
     ~/.config/op/plugins.sh:
       relink: true
@@ -52,10 +58,6 @@
     ~/.local/bin:
       glob: true
       path: local/bin/*
-      exclude: [local/bin/fzf]
-    ~/.local/fzf:
-      glob: true
-      path: config/fzf/*
     # Manuals
     ~/.local/man:
       glob: true