v0.3.0

• Add destination encoders for Claude, Codex, opencode, Gemini, Cursor CLI,
  Copilot CLI and VS Code Chat via restore --to TOOL, using the shared ATIF
  conversation, including Claude Code exports and bundles made with --no-native.
  Preserve messages and shared record details as historical context; do not replay
  tool calls or install source permissions, configuration, or native files.
• Add Copilot CLI and VS Code chat export, including export --input FILE,
  VS Code JSONL mutation logs, and Copilot session rewinds. Native runtime
  verification remains in progress; see README compatibility status.
• Filter automatic opencode session selection by working directory; explicit
  --session selection remains available across directories.
• Explain the --no-native / restore --to TOOL path in export errors, help,
  and inspection output, while retaining the encoded-content redaction guard.
• Validate conversion inputs and bound generated session size. Existing native
  restore and unredacted-bundle opt-in remain unchanged.
• Add the flightlog icon to flightlog.sh (favicon, touch icon and social preview
  image), the README and the Cursor plugin manifest.