docs: add --prerelease=allow to sglang install commands

[KrishnanPrash]

Overview:

sglang 0.5.10.post1 (pinned by ai-dynamo 1.1.0) depends on flash-attn-4>=4.0.0b4 which has no stable release. pip/uv refuse transitive pre-releases by default, so plain pip install ai-dynamo[sglang] will fail once 1.1.0 publishes to PyPI.

Add --prerelease=allow (uv) to the three sglang install commands that were missing it. Switch the README from pip to uv to avoid a silent PIP_CONSTRAINT backtrack issue in NGC pytorch containers.

Details:

• Add --prerelease=allow to 3 sglang pip-install commands missing it (README.md, docs/backends/sglang/README.md, docs/reference/release-artifacts.md)
• Switch README from pip to uv pip install to match project convention and avoid silent PIP_CONSTRAINT backtrack in NGC pytorch containers
• Add inline uv install hint to README

Resolves: DYN-2727

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Summary by CodeRabbit

• Documentation
  • Updated installation instructions across multiple sections to enable pre-release package versions
  • Updated package manager guidance to use uv for dependency installation

[github-actions]

🌿 Fern Docs Preview: https://nvidia-preview-6d34c383-5cda-4d64-86a2-50cd14966422.docs.buildwithfern.com/dynamo/dev

[devin-ai-integration]

Devin Review found 2 potential issues.

[coderabbitai]

Walkthrough

Three documentation files updated to add the --prerelease=allow flag to uv pip install commands for installing ai-dynamo with specific backends. The main README also adds an explicit uv setup instruction before dependency installation.

Changes

Cohort / File(s)	Summary
Installation Documentation Updates README.md, docs/backends/sglang/README.md, docs/reference/release-artifacts.md	Updated uv pip install commands to include --prerelease=allow flag for ai-dynamo package installation. Main README also adds explicit uv setup step prior to dependency installation.

Estimated code review effort

🎯 1 (Trivial) | ⏱️ ~3 minutes

🚥 Pre-merge checks | ✅ 3

✅ Passed checks (3 passed)

Check name	Status	Explanation
Description check	✅ Passed	The description covers all required template sections with complete context, explaining the problem, specific changes made, and issue resolution.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Title check	✅ Passed	The title accurately summarizes the main change: adding --prerelease=allow flag to sglang installation commands across documentation files.

_{✏️ Tip: You can configure your own custom pre-merge checks in the settings.}

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[coderabbitai]

Actionable comments posted: 1

🤖 Prompt for all review comments with AI agents

Verify each finding against the current code and only fix it if needed.

Inline comments:
In `@README.md`:
- Line 128: Update the inline install suggestion in README where the command
shows uv pip install --prerelease=allow "ai-dynamo[sglang]"   # or [vllm] or
[trtllm] to avoid misleading users about TRT-LLM; either remove the “[trtllm]”
token from that inline comment or replace it with a brief parenthetical like
“(TRT-LLM requires a different pip command with --extra-index-url
https://pypi.nvidia.com as described in the backend-specific notes)” so readers
skimming the README won’t try the uv pip shortcut for trtllm; edit the exact
line containing the bracketed backend list in README.md.

🪄 Autofix (Beta)

Fix all unresolved CodeRabbit comments on this PR:

• Push a commit to this branch (recommended)
• Create a new PR with the fixes

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ℹ️ Review info

⚙️ Run configuration

Configuration used: Path: .coderabbit.yaml

Review profile: CHILL

Plan: Pro

Run ID: 7470d27a-dce4-4ba2-a6ea-2e92af842ab4

📥 Commits

Reviewing files that changed from the base of the PR and between 714b423 and 4691939.

📒 Files selected for processing (3)

• README.md
• docs/backends/sglang/README.md
• docs/reference/release-artifacts.md