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/minimal.toml

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+# Minimal Dark Theme for Streamlit
+# Clean, distraction-free dark theme with subtle accents
+[theme]
+base = "dark"
+primaryColor = "#6366f1"
+backgroundColor = "#18181b"
+secondaryBackgroundColor = "#27272a"
+codeBackgroundColor = "#27272a"
+textColor = "#fafafa"
+linkColor = "#818cf8"
+borderColor = "#3f3f46"
+showWidgetBorder = false
+showSidebarBorder = false
+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 = "#e4e4e7"
+baseFontSize = 14
+baseFontWeight = 400
+headingFontSizes = ["32px", "24px", "20px", "16px", "14px", "12px"]
+headingFontWeights = [600, 600, 500, 500, 500, 500]
+linkUnderline = false
+chartCategoricalColors = ["#6366f1", "#8b5cf6", "#ec4899", "#14b8a6", "#f59e0b", "#ef4444", "#22c55e"]
+
+# Color palette
+violetColor = "#8b5cf6"
+blueColor = "#6366f1"
+greenColor = "#22c55e"
+yellowColor = "#f59e0b"
+orangeColor = "#f97316"
+redColor = "#ef4444"
+
+[theme.sidebar]
+backgroundColor = "#09090b"
+secondaryBackgroundColor = "#18181b"
+codeBackgroundColor = "#18181b"
+borderColor = "#27272a"