Post-merge-review: Fix template-no-curly-component-invocation: preserve this./@/local names in suggestions, and skip JS scope bindings

[johanrd]

What's broken on master

Two related false positives:

1. Autofix PascalCases path prefixes. transformTagName unconditionally PascalCases the curly path when generating the suggested angle-bracket form, corrupting three categories of names:

   {{#this.foo-bar}}…{{/this.foo-bar}}   → <This.fooBar>…</This.fooBar>   ❌
   {{#@foo-bar}}…{{/@foo-bar}}           → <@fooBar>…</@fooBar>           ❌
   {{#my-component}}…                    → <MyComponent>…                 ❌ (when my-component is a block param)

2. GJS/GTS JS scope bindings flagged. The port has no JS scope tracker, so valid imported/const identifiers used in curly form are flagged as needing angle-bracket conversion. The "fix" would break: import fooBar from './foo-bar'; <template>{{fooBar}}</template> would be rewritten to <FooBar /> which references an unbound name.

Fix

• Pass isLocal to transformTagName and return the name verbatim when it starts with @, starts with this., or is a local (block-param) binding. Matches upstream exactly (curly-component-invocation.js L1–2).
• Add isJsScopeBinding(node) using sourceCode.getScope(). When the mustache/block path head resolves to a JS binding, skip reporting entirely. Pattern already used by template-no-redundant-fn and template-no-restricted-invocations (isJsScopeVariable). Upstream ember-template-lint uses this.isLocal(path) via its own scope tracker for the same purpose.

Test plan

• 103/103 tests pass on the branch
• 5 existing tests had wrong expected output (PascalCase suggestions); updated to correct form. All 5 fail on master.
• 4 new valid tests with JS scope bindings (import fooBar from '…'; {{fooBar}}, {{fooBar arg=1}}, {{#fooBar}}…{{/fooBar}}, const someHelper = …; {{someHelper}}) all fail on master.

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Co-written by Claude.