feat: lsp hint for config entry key type

[He1pa]

1. Does this PR affect any open issues?(Y/N) and add issue references (e.g. "fix #123", "re #123".):

• N
• Y
  https://github.com/orgs/kcl-lang/discussions/1657
  feat: inlayhint for config key type #1659
  revert pr #1659 #1692

2. What is the scope of this PR (e.g. component or file name):

kclvm/sema/src/advanced_resolver/node.rs
kclvm/tools/src/LSP/src/inlay_hints.rs

3. Provide a description of the PR(e.g. more details, effects, motivations or doc link):

• Affects user behaviors
• Contains syntax changes
• Contains variable changes
• Contains experimental features
• Performance regression: Consumes more CPU
• Performance regression: Consumes more Memory
• Other

4. Are there any breaking changes?(Y/N) and describe the breaking changes(e.g. more details, motivations or doc link):

• N
• Y

5. Are there test cases for these changes?(Y/N) select and add more details, references or doc links:

• Unit test
• Integration test
• Benchmark (add benchmark stats below)
• Manual test (add detailed scripts or steps below)
• Other

[Peefy]

Have you tested this feature in konfig repo?

[He1pa]

Have you tested this feature in konfig repo?

[Peefy]

LGTM

[Peefy]

Windows CI failed.

[coveralls]

Pull Request Test Coverage Report for Build 11815888345

Details

• 40 of 43 (93.02%) changed or added relevant lines in 2 files are covered.
• 7 unchanged lines in 4 files lost coverage.
• Overall coverage increased (+0.03%) to 70.718%

---

Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
kclvm/tools/src/LSP/src/inlay_hints.rs	22	23	95.65%
kclvm/sema/src/advanced_resolver/node.rs	18	20	90.0%

Files with Coverage Reduction	New Missed Lines	%
kclvm/sema/src/resolver/mod.rs	1	99.13%
kclvm/tools/src/LSP/src/inlay_hints.rs	1	97.96%
kclvm/tools/src/LSP/src/request.rs	2	65.78%
kclvm/sema/src/core/symbol.rs	3	53.43%

Totals
Change from base Build 11813563951:	0.03%
Covered Lines:	52570
Relevant Lines:	74338

---

💛 - Coveralls