chore: rename project skills with cf-temp-mail prefix (#991)

Co-authored-by: Claude Opus 4.7 <noreply@anthropic.com>

.claude/skills/cf-temp-mail-release/SKILL.md

@@ -1,5 +1,5 @@
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-name: release
+name: cf-temp-mail-release
 description: Create a GitHub release for cloudflare_temp_email project. Use when the user asks to create a release, publish a version, tag a release, or make a new release. Reads CHANGELOG.md for release content, collects merged PRs via `gh` CLI, and creates a properly formatted GitHub release.
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.claude/skills/cf-temp-mail-upgrade-dependencies/SKILL.md

@@ -1,5 +1,5 @@
 ---
-name: upgrade-dependencies
+name: cf-temp-mail-upgrade-dependencies
 description: Upgrade npm dependencies across all sub-packages of the project. Use when the user asks to upgrade/update dependencies, bump deps, refresh lockfiles, or update wrangler. Runs pnpm upgrades on frontend/, worker/, pages/, and vitepress-docs/.
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.claude/skills/cf-temp-mail-version-upgrade/SKILL.md

@@ -1,5 +1,5 @@
 ---
-name: version-upgrade
+name: cf-temp-mail-version-upgrade
 description: Upgrade the project version number. Use when the user asks to bump the version, upgrade the version, or prepare a new release version. Supports major, minor, and patch upgrades.
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