docs(contributing): add Cursor contribution rules

Add always-on and docs-scoped Cursor rules to keep commit/PR wording and
contributing documentation aligned with project policy from
docs/contributing/overview.md.

Allow these rule files in .gitignore so they are tracked in the repo.

Author: geyslan

.cursor/rules/commit-pr-conventions.mdc

@@ -0,0 +1,23 @@
+---
+description: Commit and pull request conventions for Tracee contributors
+alwaysApply: true
+---
+
+# Commit and PR Conventions
+
+When preparing commits or PR text in this repository, follow these rules from `docs/contributing/overview.md`:
+
+- Use Conventional Commits: `type(optional scope): description`.
+- Allowed types: `feat`, `fix`, `docs`, `style`, `refactor`, `perf`, `test`, `build`, `ci`, `chore`, `revert`.
+- Write subject in imperative mood and keep it at 50 chars max.
+- Optional body explains **why**, not **how**; wrap at 72 chars.
+- Breaking changes must use `!` in subject and include a `BREAKING CHANGE:` footer.
+- Keep code details in commit message; keep review/process details in PR description.
+- For cross-area work, suggest splitting into self-contained commits when possible.
+- Remind contributors that commits must be signed (GPG/SSH/S/MIME).
+
+## Examples
+
+- `fix(ebpf): handle map resize race`
+- `docs(contributing): clarify commit signing requirement`
+- `feat(cli)!: remove deprecated --cache flag`

.cursor/rules/contributing-docs.mdc

@@ -0,0 +1,18 @@
+---
+description: Contributing docs style and policy alignment
+globs:
+  - "docs/contributing/**/*.md"
+alwaysApply: false
+---
+
+# Contributing Docs Rule
+
+When editing `docs/contributing/**`:
+
+- Keep policy text aligned with `docs/contributing/overview.md`.
+- Use normative language consistently (`must`, `should`, `may`).
+- Keep guidance actionable and concise; avoid duplicating nearby docs.
+- For commit guidance, match Conventional Commits and signed-commit rules from `overview.md`.
+- If policy changes (not just wording), update all affected contributing docs in the same PR.
+- Include examples for non-obvious rules (for example `BREAKING CHANGE` footer usage).
+- Prefer canonical external references (GitHub signing docs, Conventional Commits spec).

.gitignore

@@ -50,3 +50,5 @@ release_notes.txt
 .cursor/rules/**
 !.cursor/rules/shell-style-guide.mdc
 !.cursor/rules/testing-guide.mdc
+!.cursor/rules/commit-pr-conventions.mdc
+!.cursor/rules/contributing-docs.mdc