feat: add direnv configuration for virtual environment management

Add a new `.config/direnv/direnvrc` file with functions `layout_uv_venv` and `layout_uv`
to automate virtual environment setup using `uv`. Include the `~/.config/direnv` directory
in `install.conf.yaml` to ensure the configuration is linked during setup. These changes
simplify virtual environment management and improve developer workflow by automating
environment activation and setup.

Signed-off-by: Marcelo Borges <me@marceloborges.dev>

.config/direnv/direnvrc

@@ -0,0 +1,33 @@
+layout_uv_venv() {
+    if [[ -d ".venv" ]]; then
+        VIRTUAL_ENV="$(pwd)/.venv"
+    fi
+
+    if [[ -z $VIRTUAL_ENV || ! -d $VIRTUAL_ENV ]]; then
+        log_status "No virtual environment exists. Executing \`uv venv\` to create one."
+        uv venv
+        VIRTUAL_ENV="$(pwd)/.venv"
+    fi
+
+    PATH_add "$VIRTUAL_ENV/bin"
+    export UV_ACTIVE=1  # or VENV_ACTIVE=1
+    export VIRTUAL_ENV
+}
+
+layout_uv() {
+    if [[ -d ".venv" ]]; then
+        VIRTUAL_ENV="$(pwd)/.venv"
+    fi
+
+    if [[ -z $VIRTUAL_ENV || ! -d $VIRTUAL_ENV ]]; then
+        log_status "No uv project exists. Executing \`uv init\` to create one."
+        uv init --no-readme
+        rm hello.py
+        uv venv
+        VIRTUAL_ENV="$(pwd)/.venv"
+    fi
+
+    PATH_add "$VIRTUAL_ENV/bin"
+    export UV_ACTIVE=1  # or VENV_ACTIVE=1
+    export VIRTUAL_ENV
+}

install.conf.yaml

@@ -10,6 +10,7 @@
     ~/.config/alacritty: .config/alacritty
     ~/.config/zellij/: .config/zellij
     ~/.config/yazi/: .config/yazi
+    ~/.config/direnv: .config/direnv
     ~/.config/git/: .config/git/
     ~/.config/starship.toml: .config/starship.toml
     ~/.config/i3: .config/i3/