SN11 adds git-webserver scenario, addresses eval speed

Trajectory-RL introduced `configure-git-webserver` as the ninth evaluation scenario, designed to better discriminate miner performance through partial-credit sub-checks. The subnet acknowledged miner concerns about evaluation time; leadership emphasized that longer cycles are expected as scenarios grow, and called for community contributions to improve the system rather than focus solely on mining loop speed.

• •New scenario: configure-git-webserver (git repo + post-receive hook + web server auto-deploy)
• •Top 10 miners tightly bunched (5.82–6.25 of 8.0); current winner held 38 epochs
• •Four scenarios saturated (≥0.85); only 3 provide meaningful discrimination signal
• •Code changes submitted to improve eval timing predictability; shipping in next release