Make OAuth auth link clickable as one unit, not a wrapped blob

[luckeyfaraday]

Problem

The provider auth dialog (/connect → e.g. ChatGPT Pro/Plus) rendered the full authorization URL as the Link display text. opentui has no OSC 8 hyperlink support, so the terminal's own URL auto-detection only links the first physical line once the long URL word-wraps — hence "only the first part of the link is clickable".

Screenshot of the bug: a multi-line URL where only https://auth.openai.com/oauth/authorize? (line 1) is underlined/clickable.

Fix

Show a compact, single-line ↗ Open authorization page in browser label instead of the wrapped URL, in both AutoMethod (browser flow) and CodeMethod:

• Clicking it still opens the full URL via the Link's onMouseUp handler.
• c still copies the full URL (hint relabeled copy link).
• Adds an attributes passthrough to Link so the label renders underlined, plus a doc comment explaining the wrap pitfall.

Since a too-long URL can never be a real terminal hyperlink in this stack (no OSC 8, and raw escapes in <text> would corrupt opentui's width math), the click-to-open + copy affordances are the correct UX.

Implementation notes

Touches upstream opencode TUI files, so it's carried as added hunks in patches/opencode-athena.patch (regenerated via git diff against a fresh pinned checkout — not hand-edited).

Verification

• Patch applies cleanly on the pristine pinned revision; the other 16 files' hunks are byte-identical (no drift), only 2 files added.
• scripts/build.sh succeeds (exit 0, smoke test passed) — the TUI compiles cleanly with the patch applied.
• The rendered glyph/underline still needs an interactive /connect to eyeball.

🤖 Generated with Claude Code