feat(browser): Migrate sendDefaultPii to dataCollection in browser packages

[chargome]

• browser/src/client.ts: Migrate to dataCollection for infer_ip relay setting and addAutoIpAddressToSession listener
• browser/src/integrations/httpclient.ts: Split single sendDefaultPii gate into granular cookies, httpHeaders.request, httpHeaders.response checks with new collect behavior filtering. Includes a backwards-compat guard so legacy sendDefaultPii users see no behavioral change (deferred to v11).
• browser-utils/src/metrics/utils.ts: Migrate to dataCollection for client.address span attribute

---

Note on backwards compatibility:

When dataCollection is not explicitly set by the user, the httpclient integration falls back to the old sendDefaultPii boolean gate (all-or-nothing). This avoids silently sending more data for existing users. When dataCollection is explicitly set, the granular filtering is applied. (#21094)

closes#20929

[chargome]

bugbot run

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[github-actions]

size-limit report 📦

⚠️Warning: Base artifact is not the latest one, because the latest workflow run is not done yet. This may lead to incorrect results. Try to re-run all tests to get up to date results.

Path	Size	% Change	Change
@sentry/browser	27.17 kB	+0.04%	+9 B 🔺
@sentry/browser - with treeshaking flags	25.62 kB	+0.03%	+6 B 🔺
@sentry/browser (incl. Tracing)	45.25 kB	+0.02%	+8 B 🔺
@sentry/browser (incl. Tracing + Span Streaming)	47.47 kB	+0.02%	+6 B 🔺
@sentry/browser (incl. Tracing, Profiling)	50.22 kB	+0.01%	+5 B 🔺
@sentry/browser (incl. Tracing, Replay)	84.83 kB	+0.01%	+7 B 🔺
@sentry/browser (incl. Tracing, Replay) - with treeshaking flags	74.39 kB	+0.01%	+4 B 🔺
@sentry/browser (incl. Tracing, Replay with Canvas)	89.53 kB	+0.01%	+8 B 🔺
@sentry/browser (incl. Tracing, Replay, Feedback)	102.15 kB	+0.01%	+4 B 🔺
@sentry/browser (incl. Feedback)	44.34 kB	+0.03%	+10 B 🔺
@sentry/browser (incl. sendFeedback)	31.98 kB	+0.03%	+7 B 🔺
@sentry/browser (incl. FeedbackAsync)	37.08 kB	+0.03%	+8 B 🔺
@sentry/browser (incl. Metrics)	28.25 kB	+0.04%	+11 B 🔺
@sentry/browser (incl. Logs)	28.48 kB	+0.04%	+9 B 🔺
@sentry/browser (incl. Metrics & Logs)	29.19 kB	+0.04%	+10 B 🔺
@sentry/react	28.99 kB	+0.04%	+9 B 🔺
@sentry/react (incl. Tracing)	47.51 kB	+0.02%	+5 B 🔺
@sentry/vue	32.21 kB	+0.02%	+4 B 🔺
@sentry/vue (incl. Tracing)	47.16 kB	+0.03%	+10 B 🔺
@sentry/svelte	27.19 kB	+0.04%	+10 B 🔺
CDN Bundle	29.55 kB	+0.04%	+10 B 🔺
CDN Bundle (incl. Tracing)	47.81 kB	+0.02%	+7 B 🔺
CDN Bundle (incl. Logs, Metrics)	31.05 kB	+0.03%	+9 B 🔺
CDN Bundle (incl. Tracing, Logs, Metrics)	49.04 kB	+0.02%	+6 B 🔺
CDN Bundle (incl. Replay, Logs, Metrics)	70.31 kB	+0.02%	+8 B 🔺
CDN Bundle (incl. Tracing, Replay)	85.18 kB	+0.01%	+5 B 🔺
CDN Bundle (incl. Tracing, Replay, Logs, Metrics)	86.35 kB	+0.01%	+5 B 🔺
CDN Bundle (incl. Tracing, Replay, Feedback)	91.05 kB	-0.01%	-2 B 🔽
CDN Bundle (incl. Tracing, Replay, Feedback, Logs, Metrics)	92.21 kB	-0.01%	-4 B 🔽
CDN Bundle - uncompressed	87.59 kB	+0.03%	+18 B 🔺
CDN Bundle (incl. Tracing) - uncompressed	144.09 kB	+0.02%	+18 B 🔺
CDN Bundle (incl. Logs, Metrics) - uncompressed	92.08 kB	+0.02%	+18 B 🔺
CDN Bundle (incl. Tracing, Logs, Metrics) - uncompressed	147.85 kB	+0.02%	+18 B 🔺
CDN Bundle (incl. Replay, Logs, Metrics) - uncompressed	216.81 kB	+0.01%	+18 B 🔺
CDN Bundle (incl. Tracing, Replay) - uncompressed	262.87 kB	+0.01%	+18 B 🔺
CDN Bundle (incl. Tracing, Replay, Logs, Metrics) - uncompressed	266.61 kB	+0.01%	+18 B 🔺
CDN Bundle (incl. Tracing, Replay, Feedback) - uncompressed	276.57 kB	+0.01%	+18 B 🔺
CDN Bundle (incl. Tracing, Replay, Feedback, Logs, Metrics) - uncompressed	280.3 kB	+0.01%	+18 B 🔺
@sentry/nextjs (client)	50.03 kB	+0.03%	+13 B 🔺
@sentry/sveltekit (client)	45.68 kB	+0.03%	+10 B 🔺
@sentry/core/server	75.93 kB	-	-
@sentry/core/browser	63.09 kB	-	-
@sentry/node-core	61.96 kB	-	-
@sentry/node	130.39 kB	-	-
@sentry/node - without tracing	74.36 kB	-	-
@sentry/aws-serverless	86.57 kB	+0.01%	+2 B 🔺
@sentry/cloudflare (withSentry) - minified	171.5 kB	-	-
@sentry/cloudflare (withSentry)	429.29 kB	-	-

View base workflow run

[logaretm]

Maybe we should add tests to lock down the new sensitive header filtering behavior

[s1gr1d]

Looks good, also read the comment from the AI review, but I would consider that a fix (see comment above).

[chargome]

added the tests @logaretm