Relax Svelte runtime diagnostic compatibility check

[ejsmith]

Summary

• remove the exact Svelte runtime version requirement from the production effect-depth diagnostic plugin
• validate that each runtime patch target exists exactly once before instrumenting it
• continue failing the build when Svelte runtime internals change incompatibly

Validation

• npm run validate
• npm run test:unit -- --run src/lib/telemetry/svelte-effect-depth-diagnostics.test.ts
• npm run build
• production runtime probe confirmed diagnostic collection and Exceptionless serialization

Breaking changes

None.

[github-actions]

Package	Line Rate	Branch Rate	Complexity	Health
Exceptionless.Insulation	37%	35%	286	❌
Exceptionless.Core	76%	68%	10337	✔
Exceptionless.Web	85%	70%	8001	✔
Exceptionless.AppHost	38%	41%	147	❌
Summary	79% (25771 / 32734)	68% (12029 / 17775)	18771	✔