Add LSC Smart Connect Smart Floor Lamp

[rauchiger-byte]

Brief description of the changes

Adds device LSC Smart Connect Smart Floor Lamp (Article No. 3221699), a BK7238-based RGB floor lamp sold by Action.

Includes:

Confirmed GPIO pinout for the addressable main light, RGBW base lighting, IR receiver, and capacitive touch button
Step-by-step UART flashing guide
Hardware disassembly instructions with reference photos
UART programming pad pinout (RX1, TX1, GND)
ESPHome configuration for both independently controllable lighting zones
Product photo and internal PCB reference images

Type of changes

• New device (a single device only — one device per pull request)
• Update existing device
• Removing a device
• General cleanup
• Other

Checklist:

The rules below are enforced in CI by npm run validate-devices and npm run validate-yaml. The full reference is at Configuration YAML files.

• Adding a new device adds a single device only — one device per pull request.
• Each example yaml lives in its own .yaml file alongside index.md and is pulled into the page with a fenced block of the form ```yaml file=<name>.yaml — no inline yaml on added or modified pages.
• The first file= fence on the page references config.yaml.
• config.yaml is hardware-only: no top-level api:, ota:, mqtt:, web_server:, web_server_idf:, improv_serial:, captive_portal:, bluetooth_proxy:, or dashboard_import:, and no platform: homeassistant, platform: mqtt, or platform: template anywhere in the tree.
• If config.yaml has a wifi: block, it contains only radio tunables (country, power_save_mode, output_power, …) — no ssid, password, networks, manual_ip, eap, or use_address. An empty ap: block is allowed.
• No passwords (literal or !secret) on password:, *_password:, or psk: keys, and no !secret references anywhere in any example yaml.
• For pages with made-for-esphome: true in frontmatter: at least one ```yaml url=… fence points at a .yaml file in the manufacturer's GitHub repo (github.com/<owner>/<repo>/(blob|raw)/<ref>/<path>.yaml or the raw.githubusercontent.com equivalent) so the rendered page shows the upstream config live.

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