moved shared under rules

[ryanhristovski]

• updates the global shared rate limit logic to be under each ratelimit rule rather than the entire ratelimit spec
• removed patching keys and name value in ratelimit rule api
• remove Name field from TrafficFeatures IR, add patch keys to traffic features IR rules
• adds auto-generated Name field to RateLimitRule (this is the key for merging logic)
• updates ratelimit.go logic to work for shared/non-shared fields within each rule

Before:

    rateLimit:
      shared: true
      global:
        rules:
        - clientSelectors:
          - headers:
            - name: x-user-id
              type: Exact
              value: one
          limit:
            requests: 5
            unit: Hour

After:

    rateLimit:
      global:
        rules:
        - clientSelectors:
          - headers:
            - name: x-user-id
              type: Exact
              value: one
          shared: true
          limit:
            requests: 5
            unit: Hour
        - clientSelectors:
          - headers:
            - name: x-user-id
              type: Exact
              value: two
          shared: false
          limit:
            requests: 5
            unit: Hour

---

[codecov]

Codecov Report

Attention: Patch coverage is 75.29880% with 62 lines in your changes missing coverage. Please review.

Project coverage is 70.39%. Comparing base (8455177) to head (f7c35f5).
Report is 1 commits behind head on main.

Files with missing lines	Patch %	Lines
internal/xds/translator/ratelimit.go	78.94%	26 Missing and 14 partials ⚠️
internal/utils/merge.go	54.76%	15 Missing and 4 partials ⚠️
internal/gatewayapi/backendtrafficpolicy.go	82.35%	2 Missing and 1 partial ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #5944      +/-   ##
==========================================
- Coverage   70.45%   70.39%   -0.07%     
==========================================
  Files         217      217              
  Lines       36038    36171     +133     
==========================================
+ Hits        25392    25464      +72     
- Misses       9140     9185      +45     
- Partials     1506     1522      +16     

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

🚀 New features to boost your workflow:

• ❄️ Test Analytics: Detect flaky tests, report on failures, and find test suite problems.

[zhaohuabing]

The domain in the ratelimt server config doesn't match the one in the ratelimit filter.

ratelimit server config: domain: test-namespace/test-policy-1
ratelimit filter config : domain: test-policy-1/test-namespace

[zhaohuabing]

The domain in the ratelimt server config doesn't match the one in the ratelimit filter.

ratelimit server config: domain: test-namespace/test-policy-1 ratelimit filter config : domain: test-policy-1/test-namespace

Looks like typos in the test files. The naming logic in the code is correct.

[ryanhristovski]

/retest