fix(deps): pin dependencies

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
@modelcontextprotocol/sdk (source)	dependencies	pin	^1.29.0 → 1.29.0
@types/proxy-addr (source)	devDependencies	pin	^2.0.3 → 2.0.3
proxy-addr	dependencies	pin	^2.0.7 → 2.0.7
python (source)	requires-python	pin	>=3.11 → ==3.14.4
qrcode.react (source)	dependencies	pin	^4.2.0 → 4.2.0
useblacksmith/build-push-action (changelog)	action	digest	cbd1f60 → fb9e3e6
useblacksmith/build-push-action	action	pin	v2 → v2

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[renovate]

⚠️ Artifact update problem

Renovate failed to update artifacts related to this branch. You probably do not want to merge this PR as-is.

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The artifact failure details are included below:

File name: services/crawler/uv.lock

Command failed: uv lock --upgrade-package python
Using CPython 3.12.3 interpreter at: /usr/bin/python3.12
error: The Python request from `.python-version` resolved to Python 3.12.3, which is incompatible with the project's Python requirement: `==3.14.4` (from `project.requires-python`)
Use `uv python pin` to update the `.python-version` file to a compatible version

File name: services/rag/uv.lock

Command failed: uv lock --upgrade-package python
Using CPython 3.12.3 interpreter at: /usr/bin/python3.12
error: The Python request from `.python-version` resolved to Python 3.12.3, which is incompatible with the project's Python requirement: `==3.14.4` (from `project.requires-python`)
Use `uv python pin` to update the `.python-version` file to a compatible version

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