demo: add CI failure scenario VHS tape

Shows --no-interactive behavior when actions need human input:
auto-fixes deterministic issues, skips ambiguous ones, exits 1.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

Author: nodeselector

demo/vhs/ci-failure.tape

@@ -0,0 +1,31 @@
+Output ci-failure.gif
+
+Set Shell "zsh"
+Set FontFamily "JetBrainsMono Nerd Font"
+Set FontSize 14
+Set Width 1200
+Set Height 700
+Set Framerate 24
+Set PlaybackSpeed 1.5
+Set TypingSpeed 50ms
+Set Theme "GitHub Dark"
+
+Type "echo '# CI mode: auto-fix deterministic issues, fail on ambiguous ones'"
+Enter
+Sleep 1s
+
+Type "grep uses: demo/workflows-interactive/sha-as-ref.yml"
+Enter
+Sleep 2s
+
+Type "echo '# One action has a tag (fixable), one is a bare SHA (needs human)'"
+Enter
+Sleep 1s
+
+Type "gh actions-pin check --no-interactive demo/workflows-interactive/sha-as-ref.yml"
+Enter
+Sleep 12s
+
+Type "echo \"# Exit code: $?\""
+Enter
+Sleep 2s