Build: update version to v3.11.0-beta10

[zzlinpku]

Reminder

• I have read AGENTS.md and docs/developers_guide/agent_governance.md.
• I have linked an issue or explained why this PR does not need one.
• I have added adequate unit tests and/or case tests, or explained why not.
• I have listed the exact verification commands run and their results.
• I have described user-visible behavior changes, including INPUT parameter changes.
• I have explained core-module impact for ESolver, HSolver, ElecState, Hamilt, Operator, Psi, or other source/ changes.
• I have requested any needed governance exception below.

Linked Issue

No linked issue is needed: this is the version bump for the v3.11.0-beta10 release.

Unit Tests and/or Case Tests for my changes

• git diff --cached --check: passed before committing.
• python3 tools/03_code_analysis/agent_governance_check.py --staged: exited 0, with advisory warnings requesting test evidence and a documentation rationale; both are addressed here.
• Reviewed the staged diff: exactly one line changed in source/source_main/version.h.
• No new unit/case tests: only a version string changes; numerical algorithms and calculation behavior are unchanged.
• Full build, runtime tests, and abacus --version were not run because this fresh checkout has no built ABACUS executable. CI results remain pending.

What's changed?

Update VERSION in source/source_main/version.h from v3.11.0-beta9 to v3.11.0-beta10, so builds using the default version macro identify the upcoming release correctly.

Governance Notes

• INPUT/docs changes: no INPUT parameters, interfaces, or calculation behavior change. No documentation update is required for this version-string-only change.
• Core module impact: only the version metadata in source_main changes; no ESolver, HSolver, ElecState, Hamilt, Operator, or Psi logic changes.
• Exceptions requested: none.

[Copilot]

Copilot review overview

🟢 Approval recommended

The version-only change has no unresolved review issues.

Review effort: Lite
Findings: None

What changed in this PR

Updates ABACUS release metadata from v3.11.0-beta9 to v3.11.0-beta10.

Changes:

• Bumps the VERSION macro.
• No calculation behavior or INPUT changes.

File	Description
source/​source_main/​version.h	Updates the project version string.

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