docs(release): clarify 0.4.30 core-parity wording + finish label normalization

Review fast-follow for PR 4. The CHANGELOG now states the mapped core is
content-identical *between the chat@4.29.0 and chat@4.30.0 upstream tags*
(verified: thread.ts/types.ts/thread.test.ts and the full packages/chat/src
tree are byte-identical) — the prior 'unchanged from 4.29.0' phrasing was
accurate but misread as a claim about our code. Also sweeps the two
remaining old-style `adapter-teams@chat@4.30.0` labels in the Teams test
docstrings to the canonical `@chat-adapter/teams@4.30.0` npm tag,
completing the normalization the PR's scope called for. No logic change.

Author: patrick-chinchill

CHANGELOG.md

@@ -2,7 +2,7 @@
 
 ## 0.4.30
 
-Synced to upstream `vercel/chat@4.30.0`. The mapped core (`packages/chat/src`) is byte-for-byte unchanged from `4.29.0`, so this wave is all adapter work: a **new Twilio adapter**, a **Telegram native-streaming** port, a **Slack primitives-subpath** wave, a batch of **WhatsApp / Slack / Google Chat** fixes, and the headline — the **Teams adapter migration to the official `microsoft-teams-apps` SDK** (issue #93, delivered across four PRs). Sets `UPSTREAM_PARITY = "4.30.0"`; CI fidelity re-pinned to `chat@4.30.0` (732/732 mapped-core tests still pass, 0 missing).
+Synced to upstream `vercel/chat@4.30.0`. The mapped core (`packages/chat/src`) is content-identical between the `chat@4.29.0` and `chat@4.30.0` upstream tags, so this wave is all adapter work: a **new Twilio adapter**, a **Telegram native-streaming** port, a **Slack primitives-subpath** wave, a batch of **WhatsApp / Slack / Google Chat** fixes, and the headline — the **Teams adapter migration to the official `microsoft-teams-apps` SDK** (issue #93, delivered across four PRs). Sets `UPSTREAM_PARITY = "4.30.0"`; CI fidelity re-pinned to `chat@4.30.0` (732/732 mapped-core tests still pass, 0 missing).
 
 ### New adapter: Twilio (SMS / MMS / Voice)
 

tests/test_teams_extended.py

@@ -736,7 +736,7 @@ class TestStream:
     async def test_group_chat_stream_accumulates_and_posts_single_message(self):
         """Group chats / channels accumulate the stream and post one message.
 
-        Mirrors upstream ``stream`` (adapter-teams@chat@4.30.0): native
+        Mirrors upstream ``stream`` (@chat-adapter/teams@4.30.0): native
         ``streamViaEmit`` is reserved for DMs (where an ``IStreamer`` exists);
         non-DM threads accumulate and ``postMessage`` a single message via the
         SDK ``App.send`` (PR 2-backed).

tests/test_teams_native_streaming.py

@@ -1,6 +1,6 @@
 """Behavioral tests for Teams native streaming via the SDK ``IStreamer``.
 
-Port of upstream ``adapter-teams@chat@4.30.0`` ``index.ts``
+Port of upstream ``@chat-adapter/teams@4.30.0`` ``index.ts``
 (``streamViaEmit`` / ``streamWithEmitter``): for DMs, the Teams adapter
 dispatches stream chunks through the Teams SDK ``IStreamer.emit()`` and lets
 the SDK ship the Bot Framework streaming wire format