Continue parsing types: fix TypeParser.strict method limits and AvailableMethods parser bootstrap

[Copilot]

Two failing tests in the Strict.Language conversion path: LoadTypeParserFromLanguageDirectory (TypeParser.strict exceeded method/line limits) and MakeSureParsingFailedErrorMessagesAreClickable (crash in AvailableMethods when no parser is available for a GenericTypeImplementation with empty methods).

TypeParser.strict — method count and line length

• Inlined 4 single-use helpers (IsMemberLine, GetDeclaredName, GetLeftSide, GetParameterTypeName) into their callers, reducing method count from 19 → 15 (the limit)
• Rewrote ParseParameter from 14 lines → 6 by reusing the existing GetInitialValue helper and collapsing ternary chains to single lines

Type.cs — safe parser fallback in AvailableMethods

The from constructor auto-generation crashed with Sequence contains no elements when methods was empty, savedParser was null, and Any.Methods hadn't been populated yet (transitional state for GenericTypeImplementation):

// Before — crashes if Any.Methods is empty
: savedParser ?? GetType(Any).Methods.First().Parser, built);

// After — skips from constructor instead of crashing
var fromParser = methods.Count > 0
    ? methods[0].Parser
    : savedParser ?? GetType(Any).Methods.FirstOrDefault()?.Parser;
if (fromParser != null)
    AddFromConstructorWithMembersAsArguments(fromParser, built);

The from constructor will be added correctly once ReimplementMethods runs after InvalidateAllAvailableMethodsCaches.

Known remaining gaps

• LoadTypeParserFromLanguageDirectory inline tests still reference TypeParser("Language") but the type is registered as LanguageTypeParser — needs a two-line rename in TypeParser.strict
• MakeSureParsingFailedErrorMessagesAreClickable still fails with ">" not found for Strict/Number during constraint parsing for Name.strict — Number.AvailableMethods is returning an incomplete set; root cause not yet resolved

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