feat: add Otty terminal support

[pintaste]

Summary

Add first-class support for Otty terminal.

This follows the same pattern as Ghostty / cmux / Kaku:

1. Register Otty in SupportedApps (bundle id io.appmakes.otty)
2. Treat it as a terminal so Lite / full app / Finder extension can pick it
3. Ship a menu icon (repo already had a partial otty imageset — renamed to Otty to match the app name, icon refreshed from Otty.app)
4. Document it in the English/Chinese READMEs and Lite defaults table

How opening works

Otty registers public.folder as a document type, so the existing safe path works:

/usr/bin/open -a Otty <folder-path>

No custom shell string, no AppleScript path interpolation — same injection-safe discrete-argument approach used after the recent security fix.

Lite: set Otty as default

defaults write wang.jianing.app.OpenInTerminal-Lite LiteDefaultTerminal Otty

Test plan

• xcodebuild OpenInTerminalCore — BUILD SUCCEEDED
• xcodebuild OpenInTerminal — BUILD SUCCEEDED
• xcodebuild OpenInTerminal-Lite — BUILD SUCCEEDED
• xcodebuild OpenInEditor-Lite — BUILD SUCCEEDED
• Framework smoke checks: SupportedApps.from("Otty"), type, bundle id, getOpenArguments → ["-a", "Otty"]
• Runtime: open -a Otty with normal path, path with spaces/quotes, and a shell-injection-looking path (no injection file created)
• End-to-end: Lite with LiteDefaultTerminal=Otty opens /tmp/... via open -a Otty ... (exit 0)

Manual check for reviewers

1. Install Otty from https://otty.sh/ to /Applications/Otty.app
2. Build OpenInTerminal-Lite, set default to Otty (picker or defaults write above)
3. Open a Finder folder → click toolbar icon → Otty opens at that folder
4. In full OpenInTerminal prefs, set default terminal to Otty and use context menu / shortcut

Notes

• I maintain a tiny dedicated toolbar app (OpenInOtty) for Otty-only users; this PR is the proper upstream integration so multi-terminal users get Otty without a separate app.
• Happy to adjust naming/icon if you prefer keeping the imageset as lowercase otty.

[murasame612]

Independent verification on macOS with Otty 1.2.3:

• Confirmed CFBundleIdentifier = io.appmakes.otty and that Otty declares public.folder support, so the existing discrete-argument /usr/bin/open -a Otty flow is appropriate.
• Built all four workspace schemes successfully with code signing disabled: OpenInTerminal, OpenInTerminalCore, OpenInTerminal-Lite, and OpenInEditor-Lite.
• Framework smoke check returned Otty, terminal, io.appmakes.otty, and ["-a", "Otty"] for getOpenArguments.
• git diff --check is clean.

This looks ready from the Otty integration side. The only PR-template follow-up I noticed is linking the existing request with Closes #266.