build: switch from fnm to mise for node and pnpm management

.mise.toml

@@ -0,0 +1,3 @@
+[tools]
+node = "26"
+pnpm = "12.3.4"

.node-version

@@ -1 +0,0 @@
-26

README.md

@@ -55,13 +55,13 @@ Alternatively, search for **"DDC Brightness Controller"** in the
 Builds the extension locally and drops it into your user's extension dir.
 Requires [just](https://github.com/casey/just) as the command runner, plus the
 same build toolchain used for development (see [Development](#development)):
-`fnm` for a Node runtime (the build runs on Node via pnpm) and `glib2` for
-`glib-compile-schemas`.
+[mise](https://mise.jdx.dev/) for managing tool versions (`node` and `pnpm`),
+and `glib2` for `glib-compile-schemas`.
 
 Arch Linux:
 
 ```bash
-sudo pacman -S git just fnm glib2  # fnm needs its shell hook on PATH: https://github.com/Schniz/fnm#shell-setup
+sudo pacman -S git just mise glib2  # mise needs its shell hook: https://mise.jdx.dev/getting-started.html#shells
 ```
 
 Clone and install:
@@ -69,8 +69,7 @@ Clone and install:
 ```bash
 git clone https://github.com/lucasoskorep/ddc-brightness-control
 cd ddc-brightness-control
-fnm install
-fnm use
+mise install
 just install
 ```
 
@@ -88,21 +87,20 @@ Building and debugging locally needs a few extra tools beyond the runtime
 requirements above:
 
 - `just` — the command runner
-- `fnm` — fast node version manager (the build runs on Node via pnpm)
+- `mise` — runtime & tool manager (pins `node` and `pnpm` in `.mise.toml`)
 - `uv` — python package manager (used by the schema-analysis helper)
 - `glib2` — provides `glib-compile-schemas` for compiling the settings schema
 
 Arch Linux:
 
 ```bash
-sudo pacman -S just fnm uv glib2
+sudo pacman -S just mise uv glib2
 ```
 
-Set up the Node runtime with fnm (the pinned version lives in `.node-version`):
+Install the pinned tools with mise (defined in `.mise.toml`):
 
 ```bash
-fnm install
-fnm use
+mise install
 ```
 
 Then:

justfile

@@ -4,7 +4,7 @@ DOMAIN:="lucaso.io"
 FULL_NAME:=NAME + "@" + DOMAIN
 
 packages:
-	npx --yes corepack pnpm install
+	pnpm install
 
 build: packages && build-schemas
     rm -rf dist/*