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/github.toml

@@ -0,0 +1,37 @@
+# GitHub Theme for Streamlit
+# Clean, developer-friendly, functional with signature blue accents
+[theme]
+primaryColor = "#0969da"
+backgroundColor = "#ffffff"
+secondaryBackgroundColor = "#f6f8fa"
+codeBackgroundColor = "#f6f8fa"
+textColor = "#1F2328"
+linkColor = "#0969da"
+borderColor = "#d0d7de"
+showWidgetBorder = true
+showSidebarBorder = true
+baseRadius = "6px"
+buttonRadius = "6px"
+font = "Inter:https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap"
+codeFont = "'JetBrains Mono':https://fonts.googleapis.com/css2?family=JetBrains+Mono:wght@400;500&display=swap"
+codeFontSize = "0.85rem"
+codeTextColor = "#1F2328"
+baseFontSize = 14
+baseFontWeight = 400
+headingFontSizes = ["32px", "24px", "20px", "16px", "14px", "12px"]
+headingFontWeights = [600, 600, 600, 600, 600, 600]
+linkUnderline = false
+chartCategoricalColors = ["#0969da", "#1a7f37", "#bf3989", "#8250df", "#cf222e", "#bf8700", "#57606a"]
+
+# GitHub color palette
+blueColor = "#0969da"
+greenColor = "#1a7f37"
+redColor = "#cf222e"
+violetColor = "#8250df"
+orangeColor = "#bf8700"
+
+[theme.sidebar]
+backgroundColor = "#f6f8fa"
+secondaryBackgroundColor = "#eaeef2"
+codeBackgroundColor = "#eaeef2"
+borderColor = "#d0d7de"