chore: add AGENTS.md and symlink CLAUDE.md

AGENTS.md

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+# AGENTS.md
+
+This file provides guidance to AI coding agents when working with code in this repository.
+
+## Project Overview
+
+LaunchDarkly CLI (`ldcli`) — a Go CLI for managing LaunchDarkly feature flags. Built with Cobra/Viper, distributed via Homebrew, Docker, NPM, and GitHub Releases.
+
+## Common Commands
+
+```bash
+make build              # Build binary as ./ldcli
+make test               # Run all tests (go test ./...)
+go test ./path/to/pkg   # Run tests for a specific package
+make generate           # Regenerate code from OpenAPI spec (go generate ./...)
+make vendor             # Tidy and vendor dependencies
+make install-hooks      # Install git pre-commit hooks
+make openapi-spec-update # Download latest OpenAPI spec and regenerate code
+```
+
+## Code Generation
+
+Resource commands are auto-generated from the LaunchDarkly OpenAPI spec (`ld-openapi.json`):
+
+- **Generator:** `cmd/resources/gen_resources.go` (build tag: `gen_resources`)
+- **Template:** `cmd/resources/resource_cmds.tmpl`
+- **Output:** `cmd/resources/resource_cmds.go` (~613KB, do not edit manually)
+- **Trigger:** `//go:generate` directive in `cmd/root.go`
+
+The dev server API is also generated: `internal/dev_server/api/server.gen.go` (via oapi-codegen).
+
+## Architecture
+
+**Entry point:** `main.go` → `cmd.Execute(version)` → `cmd/root.go` (Cobra root command)
+
+**Command layer (`cmd/`):**
+- Each subcommand (flags, members, config, login, dev-server, sourcemaps, resources) has its own package
+- Resource commands are generated; custom commands are hand-written
+- Analytics tracking via `PersistentPreRun` hooks
+
+**Internal packages (`internal/`):**
+- Each domain package (flags, environments, members, projects, resources, dev_server) exposes a `Client` interface for dependency injection
+- `internal/dev_server/` — local dev server with SQLite storage, embedded React UI, and LaunchDarkly SDK integration
+- `internal/config/` — manages CLI configuration via `$XDG_CONFIG_HOME/ldcli/config.yml`
+- `internal/output/` — response formatting (JSON/plaintext)
+
+**Configuration precedence:** CLI flags → environment variables (prefix `LD_`) → config file
+
+## Adding a New Command
+
+1. Add command to root via `cmd.AddCommand` in `NewRootCommand()` in `cmd/root.go`
+2. Update usage template in `getUsageTemplate()` in `cmd/root.go`
+3. Add analytics instrumentation via `PersistentPreRun` calling `tracker.SendCommandRunEvent`
+
+## Dev Server Frontend
+
+Located at `internal/dev_server/ui/` — React 18 + TypeScript + Vite, embedded into the Go binary.
+
+```bash
+cd internal/dev_server/ui
+npm ci
+npm test        # Vitest
+npm run lint    # ESLint
+npm run build   # Production build (checked into repo)
+```
+
+## Testing
+
+- Go tests use `testify` for assertions and `go.uber.org/mock` for mocking
+- Mock generation via `mockgen`
+- Test data in `cmd/resources/test_data/` and `cmd/config/testdata/`
+
+## Pre-commit Hooks
+
+Installed via `make install-hooks`. Checks:
+- `go fmt` formatting
+- `go.mod`/`go.sum` tidiness
+- Dev server UI tests and build (requires npm)
+
+## Linting
+
+- Go: `golangci-lint` (v1.63.4) via pre-commit
+- Frontend: ESLint + Prettier

CLAUDE.md

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+AGENTS.md