v0.15.13: USB-C/connector diff pairs (#90), plane-repair rip-blocker (#112)

Highlights since v0.15.12 (41 commits):
- #90: USB-C / connector multi-terminal diff pairs route (same-component
  pairing, electrically-short legs single-ended, pipeline passthrough).
- #112: plane-repair --rip-blocker-nets + distant-pad-trace (connector GND pin
  to shield pad), CLI + plugin repair-tab + plan-JSON parity.
- #84 post-route dead-end sweep + orphan-checker accuracy, #70/#125 mm-distance
  hole keepout, #134 rip-up restore, #133 phantom-copper strip, #8/#87 result
  bookkeeping, arc-track parsing, #132 stress redo harness.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

Author: drandyhaas

VERSION

@@ -1 +1 @@
-0.15.12
+0.15.13

metadata.json

@@ -25,7 +25,7 @@
   ],
   "versions": [
     {
-      "version": "0.15.12",
+      "version": "0.15.13",
       "status": "testing",
       "kicad_version": "9.0",
       "runtime": "swig",
@@ -34,7 +34,7 @@
         "macos",
         "windows"
       ],
-      "download_url": "https://github.com/drandyhaas/KiCadRoutingTools/releases/download/v0.15.12/KiCadRoutingTools-0.15.12.zip",
+      "download_url": "https://github.com/drandyhaas/KiCadRoutingTools/releases/download/v0.15.13/KiCadRoutingTools-0.15.13.zip",
       "download_sha256": "0000000000000000000000000000000000000000000000000000000000000000",
       "download_size": 0,
       "install_size": 0