Add SST CANN simulator setup agent skill

[Denver17]

Summary

Add a new agent skill for SST/CANN simulator setup and TileXR Ascend C operator simulation workflows.

This PR adds:

• .agents/skills/sst-cann-simulator-setup/SKILL.md
• .agents/skills/sst-cann-simulator-setup/references/sst-cann-runbook.md

What Changed

SST/CANN simulator setup skill

The new sst-cann-simulator-setup skill provides an end-to-end workflow for deploying and verifying SST + CANN simulator environments, installing matched SST Core / SST Elements versions, installing CANN 8.3 packages, creating reusable environment scripts, and running smoke checks.

TileXR operator simulation guidance

The skill documents operator simulation workflows for TileXR Ascend C kernels, including kernel ABI mapping, simulator-compatible object generation, self-contained UB_Simulator testcase creation, YAML parameter layout, raw die dump inspection, and expected-value comparisons.

Reusable path conventions

The latest update removes hard-coded employee IDs and personal /home/<user> paths from the reusable skill/runbook commands. Examples now prefer placeholders such as <home>, <sim-root>, <ascend-home>, and <user>, while keeping concrete paths only as current-run inputs when a user provides them.

Review Notes

• This is agent skill documentation only; it does not change TileXR source, build scripts, or tests.
• I inspected the added files for obvious credentials such as passwords, tokens, private keys, auth headers, employee ID patterns, and concrete /home/<user> paths; none remain.
• .agents/ is ignored by default in .gitignore, so this PR intentionally tracks only this specific skill directory without changing ignore rules.

Validation

• Verified the PR diff contains only the two new .agents/skills/sst-cann-simulator-setup files.
• Ran git diff --check locally with no whitespace errors.
• Searched the final remote branch for c[0-9]{8}, s[0-9]{8}, d[0-9]{8}, and concrete /home/<user> patterns; no matches remain.
• No SST/CANN installation or simulator runtime validation was executed because the target simulator host/environment is not available in this local workspace.

[Kur0x]

放入.agent文件夹

[Denver17]

LGTM

[01Chen]

文档里删除个人路径