feat(setup): add PostHog funnel telemetry

[msukkari]

Fixes SOU-2211

Summary

• Add PostHog telemetry for the setup funnel, from wizard start through configuration, Docker validation, and completion, including cancellation, errors, and Docker startup failures.
• Capture only allowlisted, high-level properties—no credentials, repository names, emails, paths, hostnames, or raw errors.
• Link setup and deployment telemetry using a UUID passed through SOURCEBOT_INSTALL_ID, without creating telemetry state files.
• Keep telemetry failures independent of setup behavior and add packed-CLI end-to-end coverage across supported Node versions and platforms.

[mintlify]

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Project	Status	Preview	Updated
sourcebot	🟢 Ready	View Preview	Sep 12, 2026, 5:06 AM

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[github-actions]

License Audit

⚠️ Status: PASS

Metric	Count
Total packages	2181
Resolved (non-standard)	8
Unresolved	0
Strong copyleft	0
Weak copyleft	28

Weak Copyleft Packages (informational)

Package	Version	License
@img/sharp-libvips-darwin-arm64	1.3.3	LGPL-3.0-or-later
@img/sharp-libvips-darwin-x64	1.3.3	LGPL-3.0-or-later
@img/sharp-libvips-linux-arm	1.3.3	LGPL-3.0-or-later
@img/sharp-libvips-linux-arm64	1.3.3	LGPL-3.0-or-later
@img/sharp-libvips-linux-ppc64	1.3.3	LGPL-3.0-or-later
@img/sharp-libvips-linux-riscv64	1.3.3	LGPL-3.0-or-later
@img/sharp-libvips-linux-s390x	1.3.3	LGPL-3.0-or-later
@img/sharp-libvips-linux-x64	1.3.3	LGPL-3.0-or-later
@img/sharp-libvips-linuxmusl-arm64	1.3.3	LGPL-3.0-or-later
@img/sharp-libvips-linuxmusl-x64	1.3.3	LGPL-3.0-or-later
@img/sharp-wasm32	0.35.4	Apache-2.0 AND LGPL-3.0-or-later AND MIT
@img/sharp-win32-arm64	0.35.4	Apache-2.0 AND LGPL-3.0-or-later
@img/sharp-win32-ia32	0.35.4	Apache-2.0 AND LGPL-3.0-or-later
@img/sharp-win32-x64	0.35.4	Apache-2.0 AND LGPL-3.0-or-later
axe-core	4.10.3	MPL-2.0
dompurify	3.4.13	(MPL-2.0 OR Apache-2.0)
lightningcss	1.32.0	MPL-2.0
lightningcss-android-arm64	1.32.0	MPL-2.0
lightningcss-darwin-arm64	1.32.0	MPL-2.0
lightningcss-darwin-x64	1.32.0	MPL-2.0
lightningcss-freebsd-x64	1.32.0	MPL-2.0
lightningcss-linux-arm-gnueabihf	1.32.0	MPL-2.0
lightningcss-linux-arm64-gnu	1.32.0	MPL-2.0
lightningcss-linux-arm64-musl	1.32.0	MPL-2.0
lightningcss-linux-x64-gnu	1.32.0	MPL-2.0
lightningcss-linux-x64-musl	1.32.0	MPL-2.0
lightningcss-win32-arm64-msvc	1.32.0	MPL-2.0
lightningcss-win32-x64-msvc	1.32.0	MPL-2.0

Resolved Packages (8)

Package	Version	Original	Resolved	Source
codemirror-lang-elixir	4.0.0	UNKNOWN	Apache-2.0	bundled LICENSE file (full Apache-2.0 text) + npm registry metadata for latest version
khroma	2.1.0	UNKNOWN	MIT	bundled license file (full MIT text)
lezer-elixir	1.1.2	UNKNOWN	Apache-2.0	bundled LICENSE file (full Apache-2.0 text) + npm registry metadata for latest version
map-stream	0.1.0	UNKNOWN	MIT	bundled LICENCE file (full MIT text) + npm registry metadata for latest version
memorystream	0.3.1	UNKNOWN	MIT	extracted from legacy licenses[].type object + bundled LICENSE file (full MIT text)
pause-stream	0.0.11	MIT,Apache2	MIT OR Apache-2.0	extracted from license array value + bundled LICENSE file header 'Dual Licensed MIT and Apache 2'
posthog-js	1.369.0	SEE LICENSE IN LICENSE	Apache-2.0 AND MIT	bundled LICENSE file (Apache-2.0 primary grant plus vendored MIT third-party sections) + npm registry metadata for latest version
valid-url	1.0.9	UNKNOWN	MIT	bundled LICENSE file (full MIT text)