Manual blind height position triggers

• Add configurable binary sensors to trigger specific blind height positions.
• Example: move blind fully open when a patio door is open.
• Example: move blind fully closed when a “Privacy Scene” is active.
• These triggers should allow temporary height overrides while ACP continues to handle the rest of the automation (tilt).
• The triggered height position should be reversible once the binary sensor returns to its normal state.

Fixed height position in automatic mode

• Currently, the blind height can either be controlled fully automatically by ACP or not changed at all.
• Add an option to keep the blind height fixed at a defined position while using automatic mode.
• Example use case: always move the blind height to “fully closed” in automatic mode.
• Height changes should then only happen via manual override or via the proposed manual blind height position triggers.
• Tilt automation should continue to run normally up to the configured fixed height position.
• This would allow ACP to keep the blind closed for privacy/shading while still automatically adjusting the slat angle.

Avoid false manual override detection during height movements (maybe already covered with "ignore intermediate positions feature?")

• When moving a Venetian blind / Raffstore height, the tilt position is often temporarily changed during movement.
• KNX actuators commonly restore the target tilt position automatically after the height movement has finished.
• ACP should not treat this temporary tilt deviation as a manual override.
• Add a configurable grace period: if the tilt position returns to the expected target within x seconds after a height movement, no manual override should be activated.