fix(all): fix super call in multi-level generic class hierarchy using wrong mangled name

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Summary

Fixes #3895 — super.Method() calls in multi-level generic class hierarchies generate the wrong mangled name, causing a runtime error like super.OverrideIssue.AspectBase\1.Attach1505 is not a function`.

Root Cause

When callAttachedMember computes the mangled name for a super call, it calls getOverloadSuffixFrom(baseEntity, overrideMember). The hash is computed by mapping the base entity's generic parameter names (e.g. 'C) to positional indices — but the override member's parameter types use the intermediate class's generic parameter names (e.g. 'Container). The dict lookup fails, the type falls back to an empty constraint string, and produces a different hash than the one used at method definition time.

Example:

• AspectBase<'C> defines Attach('C) — hash computed as genParams={"C"→"0"}, type "C"→"0" → hash 2B595
• ProjectSelection.Attach calls base.Attach(owner) — Fable finds AspectBase as the base entity, but uses SelectionAspect<'Container>.Attach as the member. genParams={"C"→"0"} but type is "Container" → not in dict → hash 1505 ❌

Fix

After finding the base entity with tryFindBaseEntity, also call tryFindAbstractMember to retrieve the dispatch slot from that entity and pass it to callAttachedMember. This ensures both ent and memb share the same generic parameter namespace, producing a consistent hash.

Changed file: src/Fable.Transforms/FSharp2Fable.Util.fs — targeted change in the super-call entity resolution block (~10 lines).

Test Plan

• Added a test in tests/Js/Main/TypeTests.fs that creates a 3-level generic class hierarchy and calls Attach("hello"), verifying the base method was invoked (would throw at runtime before this fix)
• The fix is limited to the super-call path; normal virtual dispatch and interface calls are unaffected

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Python Type Checking Results (Pyright)

Metric	Value
Total errors	34
Files with errors	4
Excluded files	4
New errors	✅ No

Excluded files with errors (4 files)

These files have known type errors and are excluded from CI. Remove from pyrightconfig.ci.json as errors are fixed.

File	Errors	Status
temp/tests/Python/test_hash_set.py	18	Excluded
temp/tests/Python/test_applicative.py	12	Excluded
temp/tests/Python/test_nested_and_recursive_pattern.py	2	Excluded
temp/tests/Python/fable_modules/thoth_json_python/encode.py	2	Excluded