feat(slack_app): allow disabling local dev email override under DEBUG

[VojtechBartos]

Gate the local-dev Slack email override behind SLACK_APP_LOCAL_DEV_EMAIL (defaults to the seeded fixture). Set it empty to resolve the real Slack email while DEBUG stays on.

[trunk-io]

😎 This pull request was merged.

[greptile-apps]

_{Reviews (1): Last reviewed commit: "feat(slack_app): allow disabling local d..." | Re-trigger Greptile}

[github-actions]

🤖 CI report

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⚠️ Backend coverage — 91.0% of changed backend lines covered — 1 uncovered

🧪 Backend test coverage

Patch coverage — changed backend lines (products + core): ██████████████████░░ 91.0% (11 / 12)

File	Patch	Uncovered changed lines
products/slack_app/backend/api.py	66.7%	359

🤖 Agents: add a test covering the lines above, or note why under "How did you test this code?". Machine-readable gap list: the patch-coverage artifact on this run (gh run download 29993864642 -n patch-coverage), or the coverage-data block at the end of this comment.

Per-product line coverage (touched products)

Product	Coverage	Lines
platform_features	██░░░░░░░░░░░░░░░░░░ 12.1%	7 / 58
batch_exports	████████░░░░░░░░░░░░ 39.6%	8,414 / 21,250
demo	███████████░░░░░░░░░ 56.2%	1,497 / 2,663
warehouse_sources_queue	████████████░░░░░░░░ 59.2%	148 / 250
tasks	██████████████░░░░░░ 69.1%	29,366 / 42,488
data_tools	██████████████░░░░░░ 70.0%	63 / 90
ai_gateway	███████████████░░░░░ 75.0%	9 / 12
signals	████████████████░░░░ 79.2%	20,576 / 25,978
cdp	████████████████░░░░ 80.7%	3,117 / 3,863
data_modeling	█████████████████░░░ 82.8%	5,529 / 6,675
wizard	█████████████████░░░ 84.8%	935 / 1,102
notebooks	█████████████████░░░ 85.3%	7,266 / 8,522
agent_platform	█████████████████░░░ 86.4%	3,807 / 4,405
actions	█████████████████░░░ 86.6%	717 / 828
cohorts	██████████████████░░ 87.8%	4,488 / 5,114
product_tours	██████████████████░░ 87.9%	1,303 / 1,482
exports	██████████████████░░ 88.4%	6,949 / 7,861
data_warehouse	██████████████████░░ 88.8%	11,867 / 13,358
business_knowledge	██████████████████░░ 89.0%	4,391 / 4,936
engineering_analytics	██████████████████░░ 89.2%	5,641 / 6,323
conversations	██████████████████░░ 89.3%	16,820 / 18,834
dashboards	██████████████████░░ 89.4%	5,983 / 6,693
visual_review	██████████████████░░ 89.4%	5,818 / 6,505
error_tracking	██████████████████░░ 89.7%	10,174 / 11,342
alerts	██████████████████░░ 89.9%	4,054 / 4,508
early_access_features	██████████████████░░ 90.1%	1,031 / 1,144
mcp_analytics	██████████████████░░ 90.1%	2,763 / 3,065
streamlit_apps	██████████████████░░ 90.4%	2,501 / 2,767
links	██████████████████░░ 90.6%	183 / 202
slack_app	██████████████████░░ 90.7%	9,030 / 9,953
marketing_analytics	██████████████████░░ 91.0%	11,792 / 12,964
stamphog	██████████████████░░ 91.1%	4,056 / 4,450
product_analytics	██████████████████░░ 91.3%	5,811 / 6,362
mcp_store	██████████████████░░ 91.9%	4,257 / 4,634
notifications	███████████████████░ 92.6%	1,011 / 1,092
ai_observability	███████████████████░ 92.7%	14,995 / 16,168
surveys	███████████████████░ 93.0%	5,730 / 6,163
web_analytics	███████████████████░ 93.0%	14,178 / 15,237
managed_migrations	███████████████████░ 93.1%	1,424 / 1,530
posthog_ai	███████████████████░ 93.2%	1,326 / 1,422
approvals	███████████████████░ 93.3%	3,437 / 3,682
reminders	███████████████████░ 93.4%	468 / 501
workflows	███████████████████░ 93.5%	6,337 / 6,775
legal_documents	███████████████████░ 94.1%	1,568 / 1,667
endpoints	███████████████████░ 94.1%	8,640 / 9,177
messaging	███████████████████░ 94.3%	2,682 / 2,845
tracing	███████████████████░ 94.5%	2,670 / 2,826
skills	███████████████████░ 94.5%	2,893 / 3,061
revenue_analytics	███████████████████░ 94.6%	3,651 / 3,858
review_hog	███████████████████░ 94.7%	6,814 / 7,199
logs	███████████████████░ 95.4%	9,935 / 10,416
experiments	███████████████████░ 95.7%	25,036 / 26,159
growth	███████████████████░ 96.1%	3,245 / 3,376
replay_vision	███████████████████░ 96.2%	14,973 / 15,572
annotations	███████████████████░ 96.2%	732 / 761
feature_flags	███████████████████░ 96.5%	17,110 / 17,734
user_interviews	███████████████████░ 96.5%	2,638 / 2,734
access_control	███████████████████░ 96.8%	851 / 879
warehouse_sources	███████████████████░ 97.1%	328,027 / 337,701
customer_analytics	███████████████████░ 97.3%	8,380 / 8,610
data_catalog	███████████████████░ 97.5%	2,368 / 2,429
analytics_platform	████████████████████ 98.0%	2,153 / 2,197
metrics	████████████████████ 98.2%	2,491 / 2,536
pulse	████████████████████ 98.4%	2,017 / 2,049
live_debugger	████████████████████ 99.2%	613 / 618
field_notes	████████████████████ 99.4%	158 / 159

Report-only. Patch coverage = changed backend lines covered vs origin/master. Sorted lowest first.
Known gaps: lines covered only by Temporal tests show as uncovered; core line numbers may drift if master changed the same file.

[deployment-status-posthog]

Deploy status

Environment	Status	Deployed At	Workflow
dev	✅ Deployed	2026-07-23 10:03 UTC	Run
prod-us	✅ Deployed	2026-07-23 10:20 UTC	Run
prod-eu	✅ Deployed	2026-07-23 10:22 UTC	Run