CVE-2026-71260 ESPHome web_server Plaintext Password Disclosure via JSON "value" Field

ESPHome through 2026.7.0-dev discloses plaintext passwords via its webserver component. In WebServer::textjson esphome/components/webserver/webserver.cpp, a text entity configured with mode: password TEXTMODEPASSWORD has its JSON "state" field correctly masked as "", but the same serialization pa...