feat(agent): add [debug] dump_dir config field

agent/lib/proxmox_agent/config.ex

@@ -5,6 +5,7 @@ defmodule ProxmoxAgent.Config do
     :server_url,
     :token,
     :host_id,
+    :dump_dir,
     fast_seconds: 30,
     medium_seconds: 300,
     slow_seconds: 1800
@@ -14,6 +15,7 @@ defmodule ProxmoxAgent.Config do
           server_url: String.t(),
           token: String.t(),
           host_id: String.t(),
+          dump_dir: String.t() | nil,
           fast_seconds: pos_integer(),
           medium_seconds: pos_integer(),
           slow_seconds: pos_integer()
@@ -57,17 +59,24 @@ defmodule ProxmoxAgent.Config do
 
   defp build(map) do
     intervals = Map.get(map, "intervals", %{})
+    debug = Map.get(map, "debug", %{})
 
     %__MODULE__{
       server_url: map["server_url"],
       token: map["token"],
       host_id: map["host_id"] || hostname(),
+      dump_dir: normalize_dump_dir(Map.get(debug, "dump_dir")),
       fast_seconds: Map.get(intervals, "fast_seconds", 30),
       medium_seconds: Map.get(intervals, "medium_seconds", 300),
       slow_seconds: Map.get(intervals, "slow_seconds", 1800)
     }
   end
 
+  defp normalize_dump_dir(nil), do: nil
+  defp normalize_dump_dir(""), do: nil
+  defp normalize_dump_dir(s) when is_binary(s), do: s
+  defp normalize_dump_dir(_), do: nil
+
   defp hostname do
     case :inet.gethostname() do
       {:ok, name} -> List.to_string(name)

agent/test/fixtures/agent.toml

@@ -6,3 +6,6 @@ host_id = "pve-test-01"
 fast_seconds = 15
 medium_seconds = 120
 slow_seconds = 600
+
+[debug]
+dump_dir = "/tmp/proxmox-monitor-test"

agent/test/proxmox_agent/config_test.exs

@@ -14,6 +14,43 @@ defmodule ProxmoxAgent.ConfigTest do
       assert cfg.fast_seconds == 15
       assert cfg.medium_seconds == 120
       assert cfg.slow_seconds == 600
+      assert cfg.dump_dir == "/tmp/proxmox-monitor-test"
+    end
+
+    test "parses [debug] dump_dir when present" do
+      assert {:ok, cfg} = Config.load(@fixture)
+      assert cfg.dump_dir == "/tmp/proxmox-monitor-test"
+    end
+
+    test "dump_dir is nil when [debug] is absent" do
+      tmp = Path.join(System.tmp_dir!(), "agent_nodebug.toml")
+
+      File.write!(tmp, """
+      server_url = "wss://x/socket/websocket"
+      token = "t"
+      """)
+
+      on_exit(fn -> File.rm(tmp) end)
+
+      assert {:ok, cfg} = Config.load(tmp)
+      assert cfg.dump_dir == nil
+    end
+
+    test "dump_dir is nil when set to empty string" do
+      tmp = Path.join(System.tmp_dir!(), "agent_emptydebug.toml")
+
+      File.write!(tmp, """
+      server_url = "wss://x/socket/websocket"
+      token = "t"
+
+      [debug]
+      dump_dir = ""
+      """)
+
+      on_exit(fn -> File.rm(tmp) end)
+
+      assert {:ok, cfg} = Config.load(tmp)
+      assert cfg.dump_dir == nil
     end
 
     test "returns error for missing file" do