Add initial agenda docs stub

Author: llvm-beanz

docs/DesignMeetingMinutes/2025-04-29.md

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+# Design Meeting Minutes: 2025/04/29
+
+> NOTE: Please read the [terms of participation](DesignMeetingTerms.txt)
+> ("Terms") prior to joining the Teams meeting.  You joining the Teams meeting
+> with Microsoft indicates your acknowledgement, agreement, and consent to these
+> Terms.  If you do not agree to these Terms, please do not join the meeting.
+>
+> If you intend to contribute code or other copyrightable materials (e.g.
+> written comments, tools, documentation, etc.)  to the hlsl specs repository,
+> you are required to sign a Contributor License Agreement (CLA).  For details,
+> visit https://cla.microsoft.com.
+
+## Administrivia
+* No updates
+
+## Issues
+* No marked issues
+
+## PRs
+
+### Carried Forward
+
+* [[dxil] Proposal to add new debug printf dxil op](https://github.com/microsoft/hlsl-specs/pull/324)
+  * @pow2clk and @tex3d will review this in more detail.
+* [[202x] Propose adding vk::SampledTexture* types](https://github.com/microsoft/hlsl-specs/pull/343)
+  * Ready to merge.
+* [Add proposal for scalar layout for constant buffers](https://github.com/microsoft/hlsl-specs/pull/317)
+  * Action Item @llvm-beanz - Move to merge.
+* [Introduce really rough linalg matrix proposal](https://github.com/microsoft/hlsl-specs/pull/404)
+  * Action Item: @llvm-beanz to merge
+* [Rough proposal collecting thoughts on uniformity](https://github.com/microsoft/hlsl-specs/pull/405)
+  * Action Item: @llvm-beanz to update
+* [New Proposal: Draft proposal to modify resource typing in HLSL](https://github.com/microsoft/hlsl-specs/pull/461)
+  * Action item: @llvm-beanz to work with author
+
+### Current Business
+* [[Decl.Init.Agg] Arrays of unknown size](https://github.com/microsoft/hlsl-specs/pull/469)
+  * Ready for review
+* [Add an initial proposal for HLSL 202x deprecations](https://github.com/microsoft/hlsl-specs/pull/488)
+* Constant Buffers!
+  * [Constant buffers language spec - initial draft](https://github.com/microsoft/hlsl-specs/pull/419)
+  * [Constant Buffer Contexts](https://github.com/microsoft/hlsl-specs/pull/497)
+  * What is the correct relationship between `cbuffer` and `namespace`?
+    * [Some fun cbuffer examples](https://godbolt.org/z/GcKes6Eeh)
+
+### SM 6.9
+
+* [Long vector test plan](https://github.com/microsoft/hlsl-specs/pull/421)
+* [Cooperative Vectors Test Plan](https://github.com/microsoft/hlsl-specs/pull/428)
+* [[0029] Update example code to use real API](https://github.com/microsoft/hlsl-specs/pull/472)
+* [[0030][SM6.9] Add list of ops with vector overload](https://github.com/microsoft/hlsl-specs/pull/481)
+* [[0029] Make "input signed op kind"s be "is input unsigned" and booleans](https://github.com/microsoft/hlsl-specs/pull/483)
+* [[0027] Avoid using undef for dx.op.MaybeReorderThread](https://github.com/microsoft/hlsl-specs/pull/487)
+
+## Other Discussion