chore: prepare Amp orb lifecycle

.agents/resume

@@ -0,0 +1,7 @@
+#!/usr/bin/env bash
+
+set -euo pipefail
+
+# Amp Orbs setup
+
+echo "No persistent services require resume"

.agents/setup

@@ -0,0 +1,67 @@
+#!/usr/bin/env bash
+
+set -euo pipefail
+
+# Amp Orbs setup
+
+repo_root="$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)"
+cd "$repo_root"
+
+export DISABLE_TELEMETRY=1
+export MISE_EXPERIMENTAL=true
+export MISE_HTTP_TIMEOUT=120
+
+if ! command -v shellcheck >/dev/null 2>&1; then
+	echo "Installing system packages"
+	apt=(apt-get)
+	if ((EUID != 0)); then
+		if ! command -v sudo >/dev/null 2>&1; then
+			echo "shellcheck is required, but setup cannot run apt-get as root" >&2
+			exit 1
+		fi
+		apt=(sudo apt-get)
+	fi
+	"${apt[@]}" update
+	"${apt[@]}" install -y shellcheck
+fi
+
+echo "Installing mise"
+if command -v mise >/dev/null 2>&1; then
+	mise_bin="$(command -v mise)"
+else
+	installer="$(mktemp)"
+	trap 'rm -f "$installer"' EXIT
+	curl --fail --silent --show-error --location https://mise.run --output "$installer"
+	bash "$installer"
+	mise_bin="$HOME/.local/bin/mise"
+fi
+
+if [[ ! -x "$mise_bin" ]]; then
+	echo "mise was not installed at $mise_bin" >&2
+	exit 1
+fi
+
+profile_marker="# skills orb setup: activate mise"
+if ! grep -Fqx "$profile_marker" "$HOME/.bash_profile" 2>/dev/null; then
+	cat >>"$HOME/.bash_profile" <<EOF
+
+$profile_marker
+if [[ -x "$mise_bin" ]]; then
+	eval "\$("$mise_bin" activate bash)"
+fi
+EOF
+fi
+
+echo "Installing repository toolchains"
+"$mise_bin" trust "$repo_root/mise.toml"
+"$mise_bin" install
+
+echo "Installing locked dependencies"
+"$mise_bin" exec -- bun install --frozen-lockfile
+"$mise_bin" exec -- uv sync --frozen
+
+if [[ ! -f .env ]]; then
+	cp -- .env.example .env
+fi
+
+echo "Orb setup complete"