[BUG] Telemetry sent even though MASTRA_TELEMETRY_DISABLED=1

[anonymouskitler]

Describe the Bug

My console is getting errors like

[2] Error while flushing PostHog PostHogFetchNetworkError: Network error while fetching PostHog
[2]     at retriable (file:///<project_dir>/node_modules/.pnpm/posthog-node@4.18.0/node_modules/posthog-node/lib/node/index.mjs:2835:23)
[2]     at async retriable (file:///<project_dir>/node_modules/.pnpm/posthog-node@4.18.0/node_modules/posthog-node/lib/node/index.mjs:1601:25)
[2]     at async PostHog.fetchWithRetry (file:///<project_dir>/node_modules/.pnpm/posthog-node@4.18.0/node_modules/posthog-node/lib/node/index.mjs:2825:16)
[2]     at async PostHog._flush (file:///<project_dir>/node_modules/.pnpm/posthog-node@4.18.0/node_modules/posthog-node/lib/node/index.mjs:2786:17) {
[2]   error: DOMException [TimeoutError]: The operation was aborted due to timeout
[2]       at node:internal/deps/undici/undici:13510:13
[2]       at async retriable (file:///<project_dir>/node_modules/.pnpm/posthog-node@4.18.0/node_modules/posthog-node/lib/node/index.mjs:2828:23)
[2]       at async retriable (file:///<project_dir>/node_modules/.pnpm/posthog-node@4.18.0/node_modules/posthog-node/lib/node/index.mjs:1601:25)
[2]       at async PostHog.fetchWithRetry (file:///<project_dir>/node_modules/.pnpm/posthog-node@4.18.0/node_modules/posthog-node/lib/node/index.mjs:2825:16)
[2]       at async PostHog._flush (file:///<project_dir>/node_modules/.pnpm/posthog-node@4.18.0/node_modules/posthog-node/lib/node/index.mjs:2786:17),
[2]   [cause]: DOMException [TimeoutError]: The operation was aborted due to timeout
[2]       at node:internal/deps/undici/undici:13510:13
[2]       at async retriable (file:///<project_dir>/node_modules/.pnpm/posthog-node@4.18.0/node_modules/posthog-node/lib/node/index.mjs:2828:23)
[2]       at async retriable (file:///<project_dir>/node_modules/.pnpm/posthog-node@4.18.0/node_modules/posthog-node/lib/node/index.mjs:1601:25)
[2]       at async PostHog.fetchWithRetry (file:///<project_dir>/node_modules/.pnpm/posthog-node@4.18.0/node_modules/posthog-node/lib/node/index.mjs:2825:16)
[2]       at async PostHog._flush (file:///<project_dir>/node_modules/.pnpm/posthog-node@4.18.0/node_modules/posthog-node/lib/node/index.mjs:2786:17)

I checked the issue #3729
and #6551

Steps To Reproduce

1. Start mastra playground using pnpm dev

Expected Behavior

Environment variable - MASTRA_TELEMETRY_DISABLED=1 should be respected and stop sending events to posthog.

Environment Information

No response

Verification

• I have searched the existing issues to make sure this is not a duplicate
• I have included sufficient information for the team to reproduce and understand the issue