[eeffaann]

Summary

Includes all changes currently ahead of upstream in eeffaann:master.

Beijing, Tianjin, and Jing-Jin-Ji review follow-ups

Review thread: https://forum.travelmapping.net/index.php?topic=6929.0

• Synchronize AH3's 62(G6) waypoint with G6/S3801.
• Add the missing S50 ramp waypoints CheSt and 30A and refine nearby coordinates.
• Shorten S51 to TaoRd, removing the westward extension and G0121-based labels; G0121 signage has not been found there and the planned routing appears to have changed.
• Refine S3701 junction positions and shaping, and synchronize its Beijing-Hebei boundary.
• Rename Tianjin S3600's 93(G2502) waypoint to G2502.
• Leave S66 unchanged: the retained eastern endpoint corresponds to the observed tollbooth/signage transition to the local-road continuation. The prior forum explanation was a copy-paste error; waypoint 21 had already been corrected.

Earlier fork changes included

• Add the Beijing portion of S3105, update its Hebei routing and connected-route listings, and revise S32/G95 interchange representation.
• Add Hong Kong Route 6's western segment and extend Route 10 into Guangdong, with corresponding system listings and update-log entries.

Validation

• Validate modified review-route waypoint syntax, label uniqueness, and coordinate ranges.
• Confirm identical S3701 Beijing-Hebei boundary coordinates.
• Confirm S51 ends at TaoRd without G0121-based labels.
• Check whitespace with git diff --check.

[jteresco]

Commenting out hkgrt locally to get an update to run tonight.

[5.9] ABORTING due to 1 errors:
1: Duplicate main list name in hkg.rt006w: 'HKG RT6' already points to hkg.rt006

Don't forget datacheck before making a pull request, even if the change seems small!