chore: replace em dashes with hyphens, add no-em-dash rule to CLAUDE.md

.gitea/workflows/chart-release.yml

@@ -6,7 +6,7 @@ on:
     # it must come from a tag someone chose, not from whatever landed on main.
     # No `paths` filter on push, deliberately. A paths filter applies to tag
     # pushes too, so tagging a commit that happened not to touch the chart
-    # would skip the publish entirely — a release that silently does nothing.
+    # would skip the publish entirely - a release that silently does nothing.
     # Validation is seconds of helm rendering; running it on every push to main
     # is cheaper than that failure mode.
     push:
@@ -101,7 +101,7 @@ jobs:
                     --set server.env.grpcHost=agents.example.com:443 > /dev/null
 
             # The shape the cloud deployment actually uses: a wildcard tenant
-            # namespace, /api and /auth routed at the edge, and no apex — that
+            # namespace, /api and /auth routed at the edge, and no apex - that
             # belongs to the marketing site, which this chart does not deploy.
             - name: Render a wildcard host with edge-routed API paths
               run: |
@@ -173,7 +173,7 @@ jobs:
 
             # Chart.yaml is the source of truth for the version; the tag only
             # says "publish this one". A mismatch is a mistake worth stopping
-            # for — the alternative is stamping the tag over Chart.yaml, which
+            # for - the alternative is stamping the tag over Chart.yaml, which
             # leaves the repository disagreeing with what was published.
             - name: Check the tag matches Chart.yaml
               if: startsWith(github.ref, 'refs/tags/chart/v')

.gitea/workflows/server-deploy.yml

@@ -6,7 +6,7 @@ on:
             - main
     # Manual runs rebuild everything: there is no "before" commit to diff
     # against, which the change detection below treats as "build it all". That
-    # is also the escape hatch for a repo VARIABLE change — editing HQ_URL
+    # is also the escape hatch for a repo VARIABLE change - editing HQ_URL
     # pushes no commit, so nothing would rebuild on its own.
     workflow_dispatch:
 
@@ -41,7 +41,7 @@ jobs:
                   # file makes every filter below match, so there is no second
                   # code path to keep correct.
                   if [ -z "$BEFORE" ] || [ "$BEFORE" = "$ZERO" ] || ! git cat-file -e "${BEFORE}^{commit}" 2>/dev/null; then
-                      echo "No usable base commit — building every image."
+                      echo "No usable base commit - building every image."
                       git ls-files > /tmp/changed.txt
                   else
                       git diff --name-only "$BEFORE" HEAD > /tmp/changed.txt