Release on GitHub

Added

• ADE repositioning - gpty is now positioned as a graphical Agent Development Environment: a PTY foundation with a public, agent-facing API. README, docs site, and CLI copy updated; the shipped “OMP Workspace” profile is now “Agent Workspace” (attachment ids unchanged).
• Ecosystem presets - built-in profiles for herdr, lazygit, nvim, claude, and OMP, backed by per-tile command support in profile restore (every command routed through sanitize_shell).
• Pane env markers - GPTY_ENV=1 and GPTY_PANE_ID injected as trusted runtime vars at spawn (blocked from untrusted env), so agents inside a pane can prove where they are.
• Stable public pane IDs - every pane gets a persisted attachment_id (auto-generated when absent); new-pane returns it and list-panes reports id plus the display label. Targeting accepts either.
• Pane API - pane-read (plain-text screen plus scrollback), pane-status (pid, running, exit code, idle time; no argument lists every pane), pane-run (spawn a command), and pane-wait (waitForOutput: server-held wait on a Rust regex scan of recent output, up to 60 s).
• Event subscriptions - subscribe / eventsPoll on the event socket for concept matches and pane spawn/kill, with bounded per-subscriber queues.
• Broadcast and pane tags - panes carry sanitized tags; broadcast injects text into every tagged terminal pane. MCP tools grow from 14 to 19.
• Agent skill - skills/gpty/SKILL.md (shipped with the CLI via gpty --skill) teaches coding agents the full control surface, guarded by GPTY_ENV=1.
• In-app update checker - startup GitHub-release check with a check_updates setting; notify-only and silent on failure.
• About tab - Settings shows the live app version, the pinned IPC protocol version, and the repo URL; the status bar shows the version as well.

Changed

• The IPC version response is sourced from the crate (CARGO_PKG_VERSION) instead of a hardcoded literal.
• The palette command list lives in one place (PaneTypes.build_palette_commands()).
• Remote tag_name values are validated as semver before any display.
• Docs baseURL points at the current org; origin-story page and re-sequenced overview added.

Fixed

• OMP rpc_chunk base64 decoding hardened (as_chunks handling).
• README build instructions corrected (cargo build -p gpty).
• MCP tool enumeration in the agent guide matches the shipped tools.