Add basic telemetry

[NolanTrem]

🚀	This description was created by Ellipsis for commit 9d50d41

Summary:

Added telemetry support using Posthog to track feature usage and errors, with integration into various endpoints and documentation on how to disable it.

Key points:

• Added telemetry support using Posthog in r2r/telemetry/posthog.py.
• Introduced BaseTelemetryEvent and specific event classes in r2r/telemetry/events.py.
• Created telemetry_event decorator in r2r/telemetry/telemetry_decorator.py to log feature usage and errors.
• Updated r2r/main/r2r_app.py to include telemetry for various endpoints (e.g., update_prompt_app, ingest_documents_app, search_app).
• Added documentation for telemetry in docs/pages/deep-dive/telemetry.mdx.
• Updated pyproject.toml to include posthog dependency.

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Name	Status	Preview	Comments	Updated (UTC)
r2r-docs	✅ Ready (Inspect)	Visit Preview	💬 Add feedback	Jun 14, 2024 1:23am

[ellipsis-dev]

👍 Looks good to me! Reviewed everything up to 9d50d41 in 33 seconds

More details

• Looked at 415 lines of code in 8 files
• Skipped 1 files when reviewing.
• Skipped posting 1 drafted comments based on config settings.

1. r2r/telemetry/telemetry_decorator.py:10

• Draft comment:
  Ensure that the telemetry_event decorator is correctly capturing both feature usage and errors. This is crucial for maintaining accurate telemetry data.
• Reason this comment was not posted:
  Confidence changes required: 33%
  The telemetry decorator is designed to capture both feature usage and errors. It uses the FeatureUsageEvent and ErrorEvent classes from the telemetry events module. The decorator is applied to various methods in the r2r_app.py file to log these events. The decorator checks if the function is asynchronous and wraps it accordingly, ensuring that telemetry is captured both in synchronous and asynchronous environments. This is a critical part of the telemetry implementation as it ensures that feature usage and errors are logged correctly across different parts of the application.

Workflow ID: wflow_oiImQB5NWac5Sk3J

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