Add mise extension

extensions/mise/.gitignore

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+# See https://help.github.com/articles/ignoring-files/ for more about ignoring files.
+
+# dependencies
+/node_modules
+
+# Raycast specific files
+raycast-env.d.ts
+.raycast-swift-build
+.swiftpm
+compiled_raycast_swift
+compiled_raycast_rust
+
+# misc
+.DS_Store
+
+# local agent tooling (verify-mise harness); not part of the extension
+.agents/

extensions/mise/.oxfmtrc.json

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+{
+  "$schema": "./node_modules/oxfmt/configuration_schema.json",
+  "printWidth": 120,
+  "singleQuote": false,
+  "sortPackageJson": false,
+  "ignorePatterns": ["raycast-env.d.ts", "**/*.md", "metadata"]
+}

extensions/mise/.oxlintrc.json

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+{
+  "$schema": "./node_modules/oxlint/configuration_schema.json",
+  "options": {
+    "denyWarnings": true
+  },
+  "env": {
+    "node": true
+  },
+  "ignorePatterns": ["raycast-env.d.ts"],
+  "jsPlugins": [
+    {
+      "name": "raycast",
+      "specifier": "@raycast/eslint-plugin"
+    }
+  ],
+  "rules": {
+    "raycast/prefer-title-case": "error",
+    "raycast/prefer-ellipsis": "error",
+    "raycast/prefer-placeholders": "error",
+    "raycast/prefer-common-shortcut": "error",
+    "raycast/no-reserved-shortcut": "error",
+    "raycast/no-ambiguous-platform-shortcut": "error"
+  }
+}

extensions/mise/.prettierignore

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+*.md
+raycast-env.d.ts
+node_modules
+metadata
+.agents
+*.txt

extensions/mise/.prettierrc

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+{
+  "printWidth": 120,
+  "singleQuote": false
+}

extensions/mise/CHANGELOG.md

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+# Mise Changelog
+
+## [Initial Version] - {PR_MERGE_DATE}

extensions/mise/README.md

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+# Mise
+
+Raycast commands for [mise](https://mise.jdx.dev) (mise-en-place), the polyglot dev-tool version manager by [jdx](https://github.com/jdx/mise): search, install and upgrade the tools it manages, and run its tasks, from Raycast.
+
+## Requirements
+
+mise must be installed. The extension looks for it at `~/.local/bin/mise`, `/opt/homebrew/bin/mise` and `/usr/local/bin/mise`, then asks your login shell. If none of those find it, set the **Mise Path** preference to the binary's absolute path.
+
+Every mise command runs with your login shell's environment (`zsh -il` or `bash -il`, read once a day), so the `PATH` and exports such as `CARGO_HOME` from your `.zshrc` apply exactly as they do in a terminal.
+
+Install mise with the one-liner from [mise.jdx.dev](https://mise.jdx.dev/getting-started.html):
+
+```sh
+curl https://mise.run | sh
+```
+
+## Commands
+
+- **Search Tools** browses the mise registry and adds a tool to your global config (`mise use -g`).
+- **Show Installed Tools** shows every installed tool and version, and can set the global version, upgrade, uninstall, or reveal the install directory.
+- **Show Outdated Tools** lists the tools behind their latest version with Upgrade and Upgrade All, and shows the count as its own subtitle in Raycast's root search.
+- **Manage Tasks** lists your global mise tasks and runs one in your terminal (`mise run <task>`), or runs it behind a toast and shows the captured output.
+- **Tools Menu Bar** sits in the menu bar with the number of outdated tools, refreshed every twelve hours, and upgrades them with one click.
+- **Upgrade All Tools** runs `mise upgrade` for every tool behind a progress toast, without opening a window.
+- **Prune Unused Versions** runs `mise prune`, deleting installed versions that no config uses.
+- **Clear Cache** runs `mise cache clear`. It is disabled by default; enable it in the extension's settings.
+
+All commands work on your global mise configuration, which is what applies when no project config is active.
+
+## Preferences
+
+- **Mise Path** points at the binary when automatic detection fails.
+- **Terminal Application** is where **Run in Terminal** (⌘T on a tool, an upgrade or a version) opens the same mise command instead of running it behind a toast. Ghostty, iTerm2 and Terminal are supported; anything else falls back to Terminal.
+- **Upgrade past the configured range** adds `--bump` to `mise upgrade` and `mise outdated`, rewriting the version in your config.
+- **Include inactive tools** adds `--inactive` to `mise outdated` and `mise upgrade`.
+- **Remove the tool from config when uninstalling a configured version** runs `mise unuse` on the config file instead of `mise uninstall`.
+- **Parallel Jobs** passes `-j <n>` to `mise use` and `mise upgrade`.
+- **Show inactive tools in Show Installed Tools** toggles the Inactive section.
+- **Close window after actions** closes Raycast when an install, upgrade or uninstall starts and shows the result as a HUD.
+- **Log mise commands to the console** prints every mise command line, exit code and duration to the extension's console.
+- **Search Tools › Show details panel by default**, **Prune Unused Versions › What to prune** (`--tools` or `--configs`) and **Upgrade All Tools › Uninstall replaced versions** (`--prune`) are set on their own command.

extensions/mise/eslint.config.mjs

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+import raycast from "@raycast/eslint-config";
+
+export default [...raycast, { ignores: ["raycast-env.d.ts"] }];