docs(8.0): correct public docs to the real 8.0 API + honest perf claims

The GA-readiness audit found the public docs had drifted from the shipped
surface and presented uncited performance numbers as measured fact.

- quick-start: `FindResult`→`Result`, `VerbType.BuiltOn`→`DependsOn` (the
  canonical getting-started example now compiles).
- noun-verb-taxonomy: rewrote every sample off removed/fictional APIs
  (`augment`/`connectModel`/`getVerbs`/two-arg `add`/`like`/`$gte`) onto the
  real single-object `add`/`find`/`relate`/`related`; replaced the stale
  31-noun/40-verb catalogs with accurate, complete tables (42 nouns, 127 verbs).
- triple-intelligence: `like:`→`query:`, dollar-operators→bare operators, and
  several other fictional keys swept to the real `FindParams`.
- FIND_SYSTEM / PERFORMANCE / index-architecture / BATCHING: replaced
  fabricated, mutually-inconsistent latency tables and uncited speedup
  multipliers with Big-O characterizations, qualitative mechanism descriptions,
  and the one genuinely-measured benchmark (graph O(1) neighbor lookup), per the
  evidence-based-claims rule.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

docs/guides/quick-start.md

@@ -60,17 +60,17 @@ const nextId: string = await brain.add({
 await brain.relate({
   from: nextId,
   to: reactId,
-  type: VerbType.BuiltOn
+  type: VerbType.DependsOn
 })
 ```
 
 ## 5. Query with Triple Intelligence
 
 ```typescript
-import type { FindResult } from '@soulcraft/brainy'
+import type { Result } from '@soulcraft/brainy'
 
 // All three search paradigms in one call
-const results: FindResult[] = await brain.find({
+const results: Result[] = await brain.find({
   query: 'modern frontend frameworks',    // Vector similarity search
   where: { year: { greaterThan: 2015 } }, // Metadata filtering
   connected: { to: reactId, depth: 2 }   // Graph traversal