fix!: switch semantic-release to conventionalcommits preset (#96)

* fix!: switch semantic-release to conventionalcommits preset

The default angular preset doesn't recognise the `!` syntax for
breaking changes (its header regex is `^(\w*)(?:\((.*)\))?: (.*)$`,
which doesn't allow `!`). As a result the `feat!:` commit from #95 was
classified as "should not trigger a release" and the resulting
prerelease was tagged v2.18.1-beta.1 instead of v3.0.0-beta.1.

Switch both `@semantic-release/commit-analyzer` and
`@semantic-release/release-notes-generator` to the `conventionalcommits`
preset, which parses `feat!:` / `fix!:` and emits a proper
BREAKING CHANGE note. Add `conventional-changelog-conventionalcommits`
as a dev dependency so semantic-release can load the preset.

BREAKING CHANGE: `tigris buckets set-ttl`, `tigris buckets set-transition`
and the `tigris forks` command group were removed in #95. Use
`tigris buckets lifecycle list/create/edit` for lifecycle rules and
`tigris buckets create --fork-of` / `tigris buckets list --forks-of`
for forks instead. Each removed entry now exits with a redirect
message pointing at the replacement.

BREAKING CHANGE: The `--region` and `--consistency` flags on
`tigris mk`, `tigris buckets create` and `tigris buckets set` were
removed. Use `--locations` instead. The flags now exit with a
redirect message.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

* fix: hoist breaking-change rule above type-specific releaseRules

Custom releaseRules are matched before the preset defaults; the
existing `{ type: "refactor", release: "patch" }` rule would shadow
the preset's `{ breaking: true, release: "major" }` for any
`refactor!:` commit (or future custom type rules covering a type that
also carries a BREAKING CHANGE note). Add an explicit breaking rule at
the top so breaking-change detection always wins regardless of type.

Documented gotcha:
semantic-release/commit-analyzer#413

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

---------

Co-authored-by: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

Author: designcode

package-lock.json

@@ -76,15 +76,25 @@
       [
         "@semantic-release/commit-analyzer",
         {
+          "preset": "conventionalcommits",
           "releaseRules": [
+            {
+              "breaking": true,
+              "release": "major"
+            },
             {
               "type": "refactor",
               "release": "patch"
             }
           ]
         }
       ],
-      "@semantic-release/release-notes-generator",
+      [
+        "@semantic-release/release-notes-generator",
+        {
+          "preset": "conventionalcommits"
+        }
+      ],
       "@semantic-release/github",
       "@semantic-release/npm"
     ]
@@ -105,6 +115,7 @@
     "@commitlint/config-conventional": "^20.5.0",
     "@eslint/js": "^10.0.1",
     "@types/node": "^22.19.11",
+    "conventional-changelog-conventionalcommits": "^9.3.1",
     "dotenv": "^17.4.2",
     "eslint": "^10.2.1",
     "eslint-plugin-simple-import-sort": "^13.0.0",