Brand consistency: emails say "upbeatBytes" (From + digest body)

Per the brand-name standard (camelCase, one word). Updated the SMTP From default and
the digest email body/subject strings. Live env From values (auth.env + goodnews.env)
updated to match. (Web/OG brand strings in share.py + app.html are the remaining sweep.)

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

goodnews/digest.py

@@ -127,7 +127,7 @@ def _item_html(it: dict, base: str) -> str:
         f'<div style="color:#5d6b78;font-size:13px;margin:3px 0 8px">{escape(it["source"])}</div>'
         f'{summary}{why}'
         '<div style="margin-top:10px;font-size:14px">'
-        f'<a href="{base}/a/{it["id"]}" style="color:#0083ad;text-decoration:none">Read on Upbeat Bytes</a>'
+        f'<a href="{base}/a/{it["id"]}" style="color:#0083ad;text-decoration:none">Read on upbeatBytes</a>'
         f' &nbsp;·&nbsp; <a href="{escape(it["canonical_url"])}" style="color:#5d6b78;text-decoration:none">Full story at source{lock}</a>'
         '</div></div>'
     )
@@ -145,12 +145,12 @@ def build_digest(items: list[dict], brief_date: str, unsub_url: str, base: str |
     followed = followed or []
     n = len(items)
     weekday = _weekday(brief_date)
-    subject = f"{weekday}'s Upbeat Bytes · {n} calm read{'' if n == 1 else 's'}"
+    subject = f"{weekday}'s upbeatBytes · {n} calm read{'' if n == 1 else 's'}"
     if weekday == "today":
-        subject = f"Today's Upbeat Bytes · {n} calm reads"
+        subject = f"Today's upbeatBytes · {n} calm reads"
 
     text_lines = [
-        f"Upbeat Bytes — Daily Highlights",
+        f"upbeatBytes — Daily Highlights",
         f"{n} calm read{'' if n == 1 else 's'} for {weekday}.\n",
         "Good morning. A small, hopeful handful of what's going right — and there's",
         "always more waiting on the site whenever you want it.\n",
@@ -181,7 +181,7 @@ def build_digest(items: list[dict], brief_date: str, unsub_url: str, base: str |
         'font-family:-apple-system,Segoe UI,Roboto,Helvetica,Arial,sans-serif;color:#16263a">'
         # The real logo as a small hosted PNG (SVG isn't email-safe); alt text
         # keeps the brand when a client blocks remote images.
-        f'<img src="{base}/logo-email.png" alt="Upbeat Bytes" width="180" '
+        f'<img src="{base}/logo-email.png" alt="upbeatBytes" width="180" '
         'style="display:block;border:0;outline:none;text-decoration:none;height:auto;margin:0 0 2px">'
         '<div style="font-size:11px;letter-spacing:0.14em;text-transform:uppercase;color:#0083ad;'
         f'margin:5px 0 0">Daily Highlights · {escape(weekday)}</div>'
@@ -192,7 +192,7 @@ def build_digest(items: list[dict], brief_date: str, unsub_url: str, base: str |
         + main_blocks
         + followed_html
         + '<p style="font-size:15px;color:#3f7048;margin:8px 0 0">That’s today’s highlights — more good news is '
-          f'always <a href="{base}" style="color:#3f7048">waiting on Upbeat Bytes</a>. See you tomorrow.</p>'
+          f'always <a href="{base}" style="color:#3f7048">waiting on upbeatBytes</a>. See you tomorrow.</p>'
         f'<p style="font-size:12px;color:#9aa6b2;margin-top:24px">You’re getting this because you turned on '
         f'the daily digest. <a href="{unsub_url}" style="color:#9aa6b2">Unsubscribe</a>.</p>'
         '</div>'

goodnews/email_send.py

@@ -24,7 +24,7 @@ def _cfg() -> dict:
         "port": int(os.environ.get("GOODNEWS_SMTP_PORT", "587")),
         "user": os.environ.get("GOODNEWS_SMTP_USER", ""),
         "password": os.environ.get("GOODNEWS_SMTP_PASSWORD", ""),
-        "sender": os.environ.get("GOODNEWS_SMTP_FROM", "Upbeat Bytes <hello@upbeatbytes.com>"),
+        "sender": os.environ.get("GOODNEWS_SMTP_FROM", "upbeatBytes <hello@upbeatbytes.com>"),
         # Where a reader's reply should land; falls back to the From address.
         "reply_to": os.environ.get("GOODNEWS_REPLY_TO_EMAIL", ""),
     }

tests/test_digest.py

@@ -20,10 +20,10 @@ def _seed(c, n=5, date="2026-06-09"):
 def test_build_digest_is_calm_and_dated():
     items = [{"id": 1, "title": "Good thing", "canonical_url": "http://a/1", "source": "Src", "summary": "nice", "reason_text": "wonder", "paywalled": False}]
     subject, text, html = digest.build_digest(items, "2026-06-09", "http://ub/unsub")
-    assert "Tuesday's Upbeat Bytes" in subject and "1 calm read" in subject
+    assert "Tuesday's upbeatBytes" in subject and "1 calm read" in subject
     assert "Daily Highlights" in text and "Daily Highlights" in html
     assert "more good news is always" in text and "http://ub/unsub" in text  # points back to the site
-    assert "Good thing" in html and "Read on Upbeat Bytes" in html and "Unsubscribe" in html
+    assert "Good thing" in html and "Read on upbeatBytes" in html and "Unsubscribe" in html
     assert "you missed" not in (text + html).lower()  # no guilt language