feat(api, web): enhance agent installation process with invited status and policy support

- Updated the agent enrollment process to include an 'invited' status, allowing for better tracking of agent states.
- Implemented support for install links that can now include an `install_link_id`, facilitating the transition from invited to pending status upon enrollment.
- Enhanced the MikroTik installation script to include the `EvofwInstallLinkId` for better tracking and management.
- Added new API endpoints for fetching agent policies and serving MikroTik-specific installation scripts.
- Improved the web UI to reflect the new agent statuses and provide copyable installation commands for agents.

Co-authored-by: Cursor <cursoragent@cursor.com>

apps/api/src/agent-scripts/install.sh

@@ -43,8 +43,13 @@ CLIENT_TOKEN="$(gen_token)"
 HOSTNAME="$(hostname -f 2>/dev/null || hostname)"
 CP_URL="${EVOFW_CP_URL%/}"
 
-ENROLL_BODY=$(printf '{"name":"%s","hostname":"%s","platform":"%s","token":"%s","client_version":"install.sh/1"}' \
-  "$EVOFW_CLIENT_NAME" "$HOSTNAME" "$PLATFORM" "$CLIENT_TOKEN")
+if [[ -n "${EVOFW_INSTALL_LINK_ID:-}" ]]; then
+  ENROLL_BODY=$(printf '{"name":"%s","hostname":"%s","platform":"%s","token":"%s","client_version":"install.sh/1","install_link_id":"%s"}' \
+    "$EVOFW_CLIENT_NAME" "$HOSTNAME" "$PLATFORM" "$CLIENT_TOKEN" "$EVOFW_INSTALL_LINK_ID")
+else
+  ENROLL_BODY=$(printf '{"name":"%s","hostname":"%s","platform":"%s","token":"%s","client_version":"install.sh/1"}' \
+    "$EVOFW_CLIENT_NAME" "$HOSTNAME" "$PLATFORM" "$CLIENT_TOKEN")
+fi
 
 ENROLL_TMP=$(mktemp)
 trap 'rm -f "$ENROLL_TMP"' EXIT