docs: improve Spring AI integration page clarity

[Lotte-Verheyden]

Summary

• Add warning that ChatModelCompletionContentObservationFilter is required for input/output on generation observations (not just log-prompt/log-completion)
• Add HTTP span suppression config (Micrometer + OTel native) to the main application.yml block to prevent duplicate spans
• Document langfuse.observation.input and langfuse.observation.output attributes for custom spans
• Add observation filter check to troubleshooting section

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Project	Deployment	Actions	Updated (UTC)
langfuse-docs	Ready	Preview, Comment	Mar 19, 2026 5:42pm

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📦 Next.js Bundle Analysis for langfuse-docs

This analysis was generated by the Next.js Bundle Analysis action. 🤖

One Page Changed Size

The following page changed size from the code in this PR compared to its base branch:

Page	Size (compressed)	First Load	% of Budget (350 KB)
/integrations/frameworks/spring-ai	66.49 KB	477.83 KB	136.52% (🟡 +0.17%)

Details

Only the gzipped size is provided here based on an expert tip.

First Load is the size of the global bundle plus the bundle for the individual page. If a user were to show up to your website and land on a given page, the first load size represents the amount of javascript that user would need to download. If next/link is used, subsequent page loads would only need to download that page's bundle (the number in the "Size" column), since the global bundle has already been downloaded.

Any third party scripts you have added directly to your app using the <script> tag are not accounted for in this analysis

The "Budget %" column shows what percentage of your performance budget the First Load total takes up. For example, if your budget was 100kb, and a given page's first load size was 10kb, it would be 10% of your budget. You can also see how much this has increased or decreased compared to the base branch of your PR. If this percentage has increased by 20% or more, there will be a red status indicator applied, indicating that special attention should be given to this. If you see "+/- <0.01%" it means that there was a change in bundle size, but it is a trivial enough amount that it can be ignored.