refactor(rules): replace .cursor/rules/ files with symlinks to .claude/rules/

Convert .cursor/rules/*.mdc files to symlinks pointing to their
corresponding .claude/rules/*.md sources. This ensures consistency
between Claude Code and Cursor IDE rule definitions.

Changes:
- Remove cursor-rules-location.mdc (obsolete with new structure)
- Add symlinks for development-workflow and git-workflow (new rules)
- Convert existing rules to symlinks (examples-standards, no-relative-imports,
  package-installation, release-please-standards, uv-scripts)

Symlink format: .cursor/rules/foo.mdc -> ../../.claude/rules/foo.md

Author: ryoppippi

.cursor/rules/cursor-rules-location.mdc

@@ -0,0 +1 @@
+../../.claude/rules/development-workflow.md

.cursor/rules/development-workflow.mdc

@@ -0,0 +1 @@
+../../.claude/rules/examples-standards.md

.cursor/rules/examples-standards.mdc

@@ -0,0 +1 @@
+../../.claude/rules/git-workflow.md

.cursor/rules/examples-standards.mdc

@@ -0,0 +1 @@
+../../.claude/rules/no-relative-imports.md

.cursor/rules/git-workflow.mdc

@@ -0,0 +1 @@
+../../.claude/rules/package-installation.md