docs(sprints): update copy briefing + atlas skill reference with new tooling

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

.claude/skills/atlas/references/author-system.md

@@ -91,11 +91,21 @@ failures before proceeding.
 
 ## Step 7: Commit
 
+Use the combined commit-and-sync script:
+
 ```bash
-tooling/atlas commit-system docs/atlas/proposals/{id}.json
-tooling/atlas sync-wiki "{system_id}"
-git add docs/atlas/proposals/{id}.json wiki/star-systems/{slug}/index.md
-git commit -m "data(atlas): author {system_name} ({system_id}) — {named bodies summary}"
+tooling/atlas-commit-and-sync "{system_id}" {corridor_tag}
+```
+
+This runs: verify → wipe-if-exists → commit-system → sync-wiki → git
+add + git commit in one command. The corridor_tag (e.g. `east_reach`)
+is used in the commit message.
+
+If system-level DB fields need correction before committing (e.g.
+`star_type`, `settlement_wave`), use:
+
+```bash
+tooling/atlas-update-field "{system_id}" {field} {value}
 ```
 
 Post-commit: verify topology section survived sync-wiki. If missing,

docs/sprints/sprint-29/copy.md

@@ -27,7 +27,7 @@ All tracks run in series on the `copy` branch (parallel worktree approach supers
 |-------|-------|----------|---------|-----------|--------|
 | A | #739 | North Reach | 43 | 4-12 | done |
 | B | #740 | South Reach | 47 | 4-10 | done |
-| C | #741 | East Reach | 47 | 4-10 | |
+| C | #741 | East Reach | 47 | 4-10 | hop 4 done (6/47) |
 | D | #742 | West Reach | 48 | 4-11 | |
 | E | #743 | Deep Frontier | 73 | 5-12 | |