chore: Change license from CC BY-NC-SA 4.0 to PolyForm Noncommercial 1.0.0

Replace Creative Commons Attribution-NonCommercial-ShareAlike 4.0
with PolyForm Noncommercial License 1.0.0 across all files:
LICENSE, README badge/footer, and all Python module headers.

custom_components/ha_text_ai/__init__.py

@@ -1,7 +1,7 @@
 """
 The HA Text AI integration.
 
-@license: CC BY-NC-SA 4.0 International
+@license: PolyForm Noncommercial 1.0.0 (https://polyformproject.org/licenses/noncommercial/1.0.0)
 @author: SMKRV
 @github: https://github.com/smkrv/ha-text-ai
 @source: https://github.com/smkrv/ha-text-ai

custom_components/ha_text_ai/api_client.py

@@ -1,7 +1,7 @@
 """
 API Client for HA Text AI.
 
-@license: CC BY-NC-SA 4.0 International
+@license: PolyForm Noncommercial 1.0.0 (https://polyformproject.org/licenses/noncommercial/1.0.0)
 @author: SMKRV
 @github: https://github.com/smkrv/ha-text-ai
 @source: https://github.com/smkrv/ha-text-ai

custom_components/ha_text_ai/config_flow.py

@@ -1,7 +1,7 @@
 """
 Config flow for HA text AI integration.
 
-@license: CC BY-NC-SA 4.0 International
+@license: PolyForm Noncommercial 1.0.0 (https://polyformproject.org/licenses/noncommercial/1.0.0)
 @author: SMKRV
 @github: https://github.com/smkrv/ha-text-ai
 @source: https://github.com/smkrv/ha-text-ai

custom_components/ha_text_ai/const.py

@@ -1,7 +1,7 @@
 """
 Constants for the HA text AI integration.
 
-@license: CC BY-NC-SA 4.0 International
+@license: PolyForm Noncommercial 1.0.0 (https://polyformproject.org/licenses/noncommercial/1.0.0)
 @author: SMKRV
 @github: https://github.com/smkrv/ha-text-ai
 @source: https://github.com/smkrv/ha-text-ai

custom_components/ha_text_ai/coordinator.py

@@ -1,7 +1,7 @@
 """
 The HA Text AI coordinator.
 
-@license: CC BY-NC-SA 4.0 International
+@license: PolyForm Noncommercial 1.0.0 (https://polyformproject.org/licenses/noncommercial/1.0.0)
 @author: SMKRV
 @github: https://github.com/smkrv/ha-text-ai
 @source: https://github.com/smkrv/ha-text-ai

custom_components/ha_text_ai/history.py

@@ -1,7 +1,7 @@
 """
 History management for HA Text AI integration.
 
-@license: CC BY-NC-SA 4.0 International
+@license: PolyForm Noncommercial 1.0.0 (https://polyformproject.org/licenses/noncommercial/1.0.0)
 @author: SMKRV
 @github: https://github.com/smkrv/ha-text-ai
 @source: https://github.com/smkrv/ha-text-ai

custom_components/ha_text_ai/metrics.py

@@ -1,7 +1,7 @@
 """
 Metrics management for HA Text AI integration.
 
-@license: CC BY-NC-SA 4.0 International
+@license: PolyForm Noncommercial 1.0.0 (https://polyformproject.org/licenses/noncommercial/1.0.0)
 @author: SMKRV
 @github: https://github.com/smkrv/ha-text-ai
 @source: https://github.com/smkrv/ha-text-ai

custom_components/ha_text_ai/providers.py

@@ -4,7 +4,7 @@ Provider registry for HA Text AI integration.
 Centralizes provider-specific configuration to avoid dispatch duplication
 across __init__.py, config_flow.py, and api_client.py.
 
-@license: CC BY-NC-SA 4.0 International
+@license: PolyForm Noncommercial 1.0.0 (https://polyformproject.org/licenses/noncommercial/1.0.0)
 @author: SMKRV
 @github: https://github.com/smkrv/ha-text-ai
 @source: https://github.com/smkrv/ha-text-ai

custom_components/ha_text_ai/sensor.py

@@ -1,7 +1,7 @@
 """
 Sensor platform for HA Text AI.
 
-@license: CC BY-NC-SA 4.0 International
+@license: PolyForm Noncommercial 1.0.0 (https://polyformproject.org/licenses/noncommercial/1.0.0)
 @author: SMKRV
 @github: https://github.com/smkrv/ha-text-ai
 @source: https://github.com/smkrv/ha-text-ai

custom_components/ha_text_ai/utils.py

@@ -1,7 +1,7 @@
 """
 Utility functions for HA Text AI integration.
 
-@license: CC BY-NC-SA 4.0 International
+@license: PolyForm Noncommercial 1.0.0 (https://polyformproject.org/licenses/noncommercial/1.0.0)
 @author: SMKRV
 @github: https://github.com/smkrv/ha-text-ai
 @source: https://github.com/smkrv/ha-text-ai