fix: update default TCP port from 12345 to 5000 in code and tests

Updates the default TCP port throughout the codebase to match the
documentation changes made in the previous commit.

Changes:
- config.py: Update TCP port validator default (line 136)
- config.py: Update environment variable fallback default (line 255)
- test_config.py: Update test assertions (lines 117, 145)
- test_bridge.py: Update test assertion and fixture (lines 23, 63)
- test_command_forwarding.py: Update test fixture (line 20)
- test_rate_limiting.py: Update test fixtures (lines 22, 37)

Co-authored-by: JingleManSweep <jinglemansweep@users.noreply.github.com>

meshcore_mqtt/config.py

@@ -133,7 +133,7 @@ class MeshCoreConfig(BaseModel):
 
         # Set default port for TCP if None provided
         if connection_type == ConnectionType.TCP and v is None:
-            v = 12345
+            v = 5000
 
         if v is not None and not 1 <= v <= 65535:
             raise ValueError("Port must be between 1 and 65535")
@@ -252,7 +252,7 @@ class Config(BaseModel):
             connection_type=ConnectionType(os.getenv("MESHCORE_CONNECTION", "tcp")),
             address=os.getenv("MESHCORE_ADDRESS", ""),
             port=(
-                int(os.getenv("MESHCORE_PORT", "12345"))
+                int(os.getenv("MESHCORE_PORT", "5000"))
                 if os.getenv("MESHCORE_PORT")
                 else None
             ),

tests/test_bridge.py

@@ -20,7 +20,7 @@ def test_config() -> Config:
         meshcore=MeshCoreConfig(
             connection_type=ConnectionType.TCP,
             address="127.0.0.1",
-            port=12345,
+            port=5000,
         ),
     )
 
@@ -60,7 +60,7 @@ class TestBridgeCoordinator:
         bridge = BridgeCoordinator(test_config)
         assert bridge.config.meshcore.connection_type == ConnectionType.TCP
         assert bridge.config.meshcore.address == "127.0.0.1"
-        assert bridge.config.meshcore.port == 12345
+        assert bridge.config.meshcore.port == 5000
 
     def test_serial_connection_config(self) -> None:
         """Test serial connection configuration."""

tests/test_command_forwarding.py

@@ -17,7 +17,7 @@ def test_config() -> Config:
         meshcore=MeshCoreConfig(
             connection_type=ConnectionType.TCP,
             address="127.0.0.1",
-            port=12345,
+            port=5000,
         ),
     )
 

tests/test_config.py

@@ -110,11 +110,11 @@ class TestMeshCoreConfig:
     def test_valid_tcp_config(self) -> None:
         """Test valid TCP configuration."""
         config = MeshCoreConfig(
-            connection_type=ConnectionType.TCP, address="192.168.1.100", port=12345
+            connection_type=ConnectionType.TCP, address="192.168.1.100", port=5000
         )
         assert config.connection_type == ConnectionType.TCP
         assert config.address == "192.168.1.100"
-        assert config.port == 12345
+        assert config.port == 5000
         assert config.timeout == 5
 
     def test_valid_serial_config(self) -> None:
@@ -142,7 +142,7 @@ class TestMeshCoreConfig:
         config = MeshCoreConfig(
             connection_type=ConnectionType.TCP, address="192.168.1.100", port=None
         )
-        assert config.port == 12345
+        assert config.port == 5000
 
     def test_custom_baudrate(self) -> None:
         """Test custom baudrate for serial connections."""

tests/test_rate_limiting.py

@@ -19,7 +19,7 @@ def test_config() -> Config:
         meshcore=MeshCoreConfig(
             connection_type=ConnectionType.TCP,
             address="127.0.0.1",
-            port=12345,
+            port=5000,
             message_initial_delay=0.1,  # 100ms for faster tests
             message_send_delay=0.2,  # 200ms for faster tests
         ),
@@ -34,7 +34,7 @@ def test_config_zero_delays() -> Config:
         meshcore=MeshCoreConfig(
             connection_type=ConnectionType.TCP,
             address="127.0.0.1",
-            port=12345,
+            port=5000,
             message_initial_delay=0.0,
             message_send_delay=0.0,
         ),