feat: initial release of muyue - AI-powered dev environment assistant

Complete implementation of muyue v0.1.0, a single-binary Go tool that
transforms the development environment with AI-powered orchestration.

Core features:
- TUI with 5 tabs (Dashboard/Chat/Workflow/Agents/Config) using Charm stack
- AI chat via MiniMax M2.7 with async message handling
- Structured Plan→Execute workflow engine (gather→plan→review→execute)
- System scanner detecting 14 tools + 8 runtimes across Linux/macOS/Windows
- Auto-installer for Crush, Claude Code, BMAD, Starship, runtimes
- Background update daemon with hourly checks
- LSP auto-config for 16 language servers
- MCP auto-config for 12 servers (deployed to Crush + Claude Code)
- Skills system with 5 built-ins + AI-powered generation
- Crush/Claude Code proxy for unified control
- HTML preview server for visual outputs
- First-time setup wizard with interactive profiling
- Cross-platform: Linux (primary), macOS, Windows, WSL

CI/CD:
- GitHub Actions CI: build + test + lint on Linux/macOS/Windows
- Release workflow: cross-compile 6 binaries with checksums on tag push

💘 Generated with Crush

Assisted-by: GLM-5.1 via Crush <crush@charm.land>

go.mod

@@ -0,0 +1,39 @@
+module github.com/muyue/muyue
+
+go 1.24.3
+
+require (
+	github.com/charmbracelet/bubbles v1.0.0
+	github.com/charmbracelet/bubbletea v1.3.10
+	github.com/charmbracelet/huh v1.0.0
+	github.com/charmbracelet/lipgloss v1.1.0
+	gopkg.in/yaml.v3 v3.0.1
+)
+
+require (
+	github.com/atotto/clipboard v0.1.4 // indirect
+	github.com/aymanbagabas/go-osc52/v2 v2.0.1 // indirect
+	github.com/catppuccin/go v0.3.0 // indirect
+	github.com/charmbracelet/colorprofile v0.4.1 // indirect
+	github.com/charmbracelet/x/ansi v0.11.6 // indirect
+	github.com/charmbracelet/x/cellbuf v0.0.15 // indirect
+	github.com/charmbracelet/x/exp/strings v0.0.0-20240722160745-212f7b056ed0 // indirect
+	github.com/charmbracelet/x/term v0.2.2 // indirect
+	github.com/clipperhouse/displaywidth v0.9.0 // indirect
+	github.com/clipperhouse/stringish v0.1.1 // indirect
+	github.com/clipperhouse/uax29/v2 v2.5.0 // indirect
+	github.com/dustin/go-humanize v1.0.1 // indirect
+	github.com/erikgeiser/coninput v0.0.0-20211004153227-1c3628e74d0f // indirect
+	github.com/lucasb-eyer/go-colorful v1.3.0 // indirect
+	github.com/mattn/go-isatty v0.0.20 // indirect
+	github.com/mattn/go-localereader v0.0.1 // indirect
+	github.com/mattn/go-runewidth v0.0.19 // indirect
+	github.com/mitchellh/hashstructure/v2 v2.0.2 // indirect
+	github.com/muesli/ansi v0.0.0-20230316100256-276c6243b2f6 // indirect
+	github.com/muesli/cancelreader v0.2.2 // indirect
+	github.com/muesli/termenv v0.16.0 // indirect
+	github.com/rivo/uniseg v0.4.7 // indirect
+	github.com/xo/terminfo v0.0.0-20220910002029-abceb7e1c41e // indirect
+	golang.org/x/sys v0.38.0 // indirect
+	golang.org/x/text v0.23.0 // indirect
+)