chore: bump version to 3.2.0

[anjerodev]

Summary

• Bump version to 3.2.0 so the unreleased feat: pass current git branch into commit LLM context #145 work (current git branch in commit LLM context) ships via the Release workflow
• Apply the Release label so merge packages the extension, creates GitHub release v3.2.0, and publishes to the Marketplace

What's included since v3.1.2

• feat: pass current git branch into commit LLM context #145 — feat: include current git branch in commit LLM context (closes Does LLM has current branch name as a context for generating messages? #126)

Dependabot (left open)

• chore(deps-dev): bump @tanstack/ai and @tanstack/ai-ollama #137 — still needed: bumps @tanstack/ai 0.51.0→0.53.0 and @tanstack/ai-ollama 0.10.2→0.11.1 (newer than chore: update dependencies and bump to 3.1.2 #144)
• chore(deps-dev): bump @types/node from 26.4.1 to 26.5.0 #142 — still needed: bumps @types/node 26.4.1→26.5.0 (newer than chore: update dependencies and bump to 3.1.2 #144)

Test plan

• Local lint + xvfb-run -a pnpm test — 48 passing
• CI build-and-test pass
• Merge with Release label
• Confirm GitHub release v3.2.0 is created with the .vsix
• Confirm Marketplace shows version 3.2.0