feat: add pinned f0390c5 full path C evaluation reports and update runtime adapter tests

Author: apstenku123

cppmega_v4/_tilelang/linear_attention_path_d_real.py

@@ -235,16 +235,16 @@ <h2>Main Reports</h2>
                             Mamba3 Path C forward and the production-safe Path B backward route.</p>
                     </div>
                     <div class="metric"><span>Explicit full Path C backward</span><strong><a
-                                href="v4/cppmega_1b_path_matrix_full_path_c_bwd_20260518.html">Full-C Matrix
+                                href="v4/cppmega_1b_path_matrix_full_path_c_bwd_f0390c5_pinned_20260518.html">Full-C Matrix
                                 HTML</a></strong>
-                        <p>Fresh current-HEAD 42/42 1B cells with <code>--mamba3-bwd path_c</code>; use this for the
-                            explicit full Path C experiment.</p>
+                        <p>Pinned <code>f0390c5</code> 42/42 1B cells from a detached worktree with
+                            <code>--mamba3-bwd path_c</code>; use this for the explicit full Path C experiment.</p>
                     </div>
                     <div class="metric"><span>Full-C current analysis</span><strong><a
-                                href="v4/path_c_loss_analysis_full_path_c_bwd_20260518.html">Full-C Analysis
+                                href="v4/path_c_loss_analysis_full_path_c_bwd_f0390c5_pinned_20260518.html">Full-C Analysis
                                 HTML</a></strong>
-                        <p>Current <code>f49a7e4</code> loss/win table, FP8 Lion recheck, dispatch samples, and
-                            codegen/cache/lifetime targets.</p>
+                        <p>Clean <code>f0390c5</code> loss/win table, Path B cache-regression flags, dispatch samples,
+                            and codegen/cache/lifetime targets.</p>
                     </div>
                     <div class="metric"><span>Why Path C loses</span><strong><a
                                 href="v4/path_c_loss_analysis_1b_20260518.html">Loss Analysis