fix(pixel-agent-teams): reject duplicate options after whitespace stripping in questions

[Vishaaallll]

Why this matters

In ods/extensions/services/dashboard-api/pixel_agent_teams.py, questions_valid(value) validates that question options contain no duplicates via len(set(q["options"])) != len(q["options"]). However, options like ["yes", "yes "] bypass this check because trailing spaces make raw strings distinct even though they collapse into identical values when presented or trimmed.

This surgical fix compares len({x.strip() for x in q["options"]}) against len(q["options"]), ensuring options remain unique after whitespace normalization.

Validation

• Baseline reproduction: verified that ["yes", "yes "] passed questions_valid on baseline.
• Post-fix behavior: returns False when trimmed option strings collide.
• Telemetry: pixel-teams suite: 2 passed. New-test syntax and diff checks pass; new regression wired into Linux CI.

Overlap check

Inspected open/closed PRs. PR #5722 touched teams stream decoding; zero overlap with question validation logic.

Risk / AI disclosure

AI-assisted investigation, patch, and regression tests. Strengthens question option validation. Independent review remains a gate.

Follow-up integration evidence

Composed locally with public-beta at 4fa6ad170 without conflicts. CI and unit checks pass.

[Lightheartdevs]

Thanks for this contribution. public-beta was promoted into main on 2026-09-24 and no longer receives changes, so we're closing pull requests that target it. This isn't a judgment on the change itself. If it's still needed, please rebase onto main and open a focused PR. See #7253 for details and the contribution policy.