Initial commit: Shelly Manager with Textual CLI, Streamlit UI, and comprehensive .gitignore

Shelly device management app with mDNS/subnet discovery, inventory,
configuration, and mass operations for Gen1/Gen2+ devices.

Includes .gitignore excluding runtime data (device DB, user config),
AI conversation history, build artifacts, and common Python/OS patterns.

.agents/skills/developing-with-streamlit/templates/themes/_configs/spotify.toml

@@ -0,0 +1,34 @@
+# Spotify Theme for Streamlit
+# Bold, energetic, high contrast with signature green
+[theme]
+base = "dark"
+primaryColor = "#1DB954"
+backgroundColor = "#191414"
+secondaryBackgroundColor = "#282828"
+codeBackgroundColor = "#282828"
+textColor = "#ffffff"
+linkColor = "#1DB954"
+borderColor = "#404040"
+showWidgetBorder = false
+showSidebarBorder = false
+baseRadius = "8px"
+buttonRadius = "full"
+font = "Inter:https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap"
+codeFont = "'Fira Code':https://fonts.googleapis.com/css2?family=Fira+Code:wght@400;500&display=swap"
+codeFontSize = "0.85rem"
+baseFontSize = 16
+baseFontWeight = 400
+headingFontWeights = [800, 700, 700, 600, 600, 600]
+headingFontSizes = ["48px", "36px", "28px", "22px", "18px", "16px"]
+chartCategoricalColors = ["#1DB954", "#1ED760", "#B3B3B3", "#535353", "#191414", "#FFFFFF", "#509BF5"]
+
+# Spotify color palette
+greenColor = "#1DB954"
+blueColor = "#509BF5"
+grayColor = "#B3B3B3"
+
+[theme.sidebar]
+backgroundColor = "#000000"
+secondaryBackgroundColor = "#282828"
+codeBackgroundColor = "#282828"
+borderColor = "#333333"