docs(review-rules): sync system rules table with actual system_rules.json and add missing ru locale

[lizhengfeng101]

Description

The "Rule resolution per file" table in pages/src/content/docs/{en,ja,zh}/review-rules.md is missing 11 entries that are present in the actual internal/config/rules/system_rules.json. Additionally, the Russian (ru) locale is missing the review-rules.md page entirely.

Missing entries in the documentation table

Pattern	Rule doc
**/*.go	go.md
**/*.astro	astro.md
**/*.py	python.md
**/*.proto	protobuf.md — Protocol Buffers wire compatibility.
**/*.po	po.md
**/*.pot	pot.md
**/*.{graphql,gql}	graphql.md
**/*.prisma	prisma.md
**/*.jl	julia.md
**/*.{tf,hcl,tfvars}	terraform.md
**/*.bicep	bicep.md

Scope

• File(s):
  • pages/src/content/docs/en/review-rules.md
  • pages/src/content/docs/ja/review-rules.md
  • pages/src/content/docs/zh/review-rules.md
  • pages/src/content/docs/ru/review-rules.md (new file)
• Source of truth: internal/config/rules/system_rules.json
• Area: documentation site

Acceptance Criteria

• The "Rule resolution per file" table in en/review-rules.md includes all entries from system_rules.json
• The same update is applied to ja/review-rules.md (translated to Japanese)
• The same update is applied to zh/review-rules.md (translated to Chinese)
• A new ru/review-rules.md is created with the full translated content
• Table order matches the declaration order in system_rules.json

Context

Discovered by comparing the documentation table against internal/config/rules/system_rules.json. The three existing locale versions (en/ja/zh) are in sync with each other but all lag behind the code. The ru locale was recently added (#596) but only has installation.md and quickstart.md so far. The .proto entry was added in #473.