feat: SSH keys via symlinks, Tunnels page polish

- feat: discover_keys follows symlinks in ~/.ssh so externally
  managed keys (password manager, central key store, synced
  storage) appear in the picker as first-class entries (closes #58).
- change: tunnels_overview header now leads with HIGHLIGHT_W in
  the leading pad so column titles align with row content.
  Sort indicator rendered as separate span outside cols.last,
  matching host_list pattern.
- change: tunnels_overview list block carries getpurple.sh in
  title_bottom, mirroring host_list.
- change: top_bar inactive tab uses theme::muted() instead of
  theme::bold() to dim the non-active page.

Bumps version to 3.3.0 across Cargo.toml, site/page.html,
llms.txt and worker.ts embedded copies.

Symlinked SSH keys reported by @Nab0y (#58).

Author: erickochen

CHANGELOG.md

@@ -1,3 +1,10 @@
+## 3.3.0 - 2026-05-04
+
+- feat: Use SSH keys stored anywhere via symlinks.
+- feat: purple follows symlinks in ~/.ssh, so keys synced from password managers, secure storage or central key directories appear in the picker exactly like a regular file you placed there yourself.
+- change: Tunnels page mirrors the Hosts layout. Column titles line up with the rows below, getpurple.sh anchors the bottom-right corner, and the inactive tab fades to muted so your eye lands on the active page first.
+- Symlinked SSH keys reported by @Nab0y (#58).
+
 ## 3.2.0 - 2026-05-04
 
 - feat: Install purple on NixOS, or with Nix on Linux and macOS.

Cargo.lock

@@ -1,6 +1,6 @@
 [package]
 name = "purple-ssh"
-version = "3.2.0"
+version = "3.3.0"
 edition = "2024"
 description = "Open-source terminal SSH manager and SSH config editor. Search hundreds of hosts, sync from 16 clouds, transfer files, manage Docker and Podman over SSH, sign short-lived Vault SSH certs and expose an MCP server for AI agents. Rust TUI, MIT licensed."
 license = "MIT"

Cargo.toml

@@ -445,7 +445,7 @@ A: Press m in the host list to open the theme picker with live preview. 11 built
 
 ## Status
 
-- Current version: 3.2.0 (May 2026)
+- Current version: 3.3.0 (May 2026)
 - Release cadence: approximately bi-weekly
 - Test suite: 6800+ tests (unit, integration, property-based, HTTP mocking and OpenSSH ground-truth cross-validation)
 - CI: fmt, clippy, build, test on macOS and Linux, cargo-deny, MSRV 1.86 check, rustdoc warnings, site sync, TUI smoke test, design system, message centralization, keybinding invariants and visual regression