perf: use WellKnownTypes in AttributeWriter

[TimothyMakkison]

Use WellKnownTypes to cache ToDisplayName and GetTypeByMetadataName calls in AttributeWriter

Before

Method	Mean	Error	StdDev	Median	Gen0	Gen1	Allocated
Compile	225.6 ms	10.50 ms	29.45 ms	210.0 ms	11000.0000	4000.0000	104.79 MB

After

Method	Mean	Error	StdDev	Median	Gen0	Gen1	Allocated
Compile	201.8 ms	8.24 ms	22.97 ms	191.4 ms	10000.0000	4000.0000	99.34 MB

[claude]

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Code review

No issues found. Checked for bugs and CLAUDE.md compliance.

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