chore: polish for FOL contract delivery (CHANGELOG, CLI guardrails, metadata)

- Update CHANGELOG.md for 1.1.0 (date, refactoring, repository fixes)
- Add overwrite guardrails to imhotep-cli init — skips existing files
- Add bugs/homepage/keywords metadata to 5 public packages
- Mark imhotep-bench and imhotep-fixtures as private packages
- Add selector field to SourceReference interface (core types)
- Remove 7  casts from check-all.ts (folAst.position, cardinality results)
- Generate package-lock.json for reproducible installs

packages/imhotep-playwright/src/check-all.ts

@@ -121,6 +121,7 @@ export function makeCheckAll(deps: CheckAllDeps): ImhotepUi['checkAll'] {
     const validationClauseResults: ClauseResult[] = []
 
     for (let i = 0; i < assertions.length; i++) {
+      // eslint-disable-next-line @typescript-eslint/no-explicit-any
       const assertion = assertions[i] as any
       // Cardinality assertions are evaluated outside the FOL engine.
       if (assertion && ['exactlyOne', 'atLeastN', 'atMostN'].includes(assertion.kind)) {
@@ -240,8 +241,8 @@ export function makeCheckAll(deps: CheckAllDeps): ImhotepUi['checkAll'] {
       for (const folAst of folFormulas) {
         const solverFormula = compileDenseFOLToFormula(folAst)
         const selectors = getSelectorsFromFormula(solverFormula)
-        const sourceRef: SourceReference = (folAst as any).position?.start
-          ? { specLine: (folAst as any).position.start.line, specColumn: (folAst as any).position.start.column }
+        const sourceRef: SourceReference = folAst.position?.start
+          ? { specLine: folAst.position.start.line, specColumn: folAst.position.start.column }
           : {}
         checks.push({
           clauseId: `clause_${specBase++}`,
@@ -420,11 +421,10 @@ export function makeCheckAll(deps: CheckAllDeps): ImhotepUi['checkAll'] {
           metrics: {
             observedCount: 0,
             expectedCount: cardResult.expectedCount,
-            selector: cardResult.selector,
-          } as any,
+          },
           witness: { subjectId: 0, frameId: 0 },
           diagnostics: cardResult.diagnostics.map((d) => d.code),
-          sourceRef: { selector: cardResult.selector } as any,
+          sourceRef: { selector: cardResult.selector },
           clauseLabel: cardResult.label,
         })
         cardDiagnostics.push(...cardResult.diagnostics)
@@ -481,11 +481,10 @@ export function makeCheckAll(deps: CheckAllDeps): ImhotepUi['checkAll'] {
         metrics: {
           observedCount: selectorToIds.get(cardResult.selector)?.length ?? 0,
           expectedCount: cardResult.expectedCount,
-          selector: cardResult.selector,
-        } as any,
+        },
         witness: { subjectId: 0, frameId: 0 },
         diagnostics: cardResult.diagnostics.map((d) => d.code),
-        sourceRef: { selector: cardResult.selector } as any,
+        sourceRef: { selector: cardResult.selector },
         clauseLabel: cardResult.label,
       })
       allDiagnostics.push(...cardResult.diagnostics)