feat(8.0): brain.fillSubtypes migration helper + pre-RC1 gap closure

- brain.fillSubtypes(rules): idempotent subtype back-fill for pre-8.0 data.
  One rule per NounType/VerbType (literal default or per-entry function);
  fills only entries still missing a subtype through the public update()/
  updateRelation() paths; returns { scanned, filled, skipped, errors, byType }.
  Full unit suite in tests/unit/brainy/fill-subtypes.test.ts.
- Fix getNouns/getVerbs pagination hasMore (peek one past the window) —
  was permanently false, silently truncating every multi-page walk.
- find({ near }) without near.id now throws a teaching error instead of an
  opaque storage sharding failure; CLI --threshold without --near applies a
  plain score floor.
- CLI init/close audit: every one-shot command init()s, close()s, and exits
  explicitly; delete the unmaintained interactive REPL; replace the cloud-era
  storage subcommands with status/batch-delete; new types/validate commands.
- requireSubtype JSDoc now documents the 8.0 default-on contract; audit()
  recommendation points at fillSubtypes.
- Docs: data-storage-architecture rewritten to the real 8.0 on-disk layout;
  README storage section reflects filesystem+memory and snapshots; eli5 and
  SEMANTIC_VFS /as-of/ semantics corrected; internal tracker IDs and
  .strategy references scrubbed from published files.

src/cli/index.ts

@@ -19,6 +19,7 @@ import { insightsCommands } from './commands/insights.js'
 import { importCommands } from './commands/import.js'
 import { snapshotCommands } from './commands/snapshot.js'
 import { inspectCommands } from './commands/inspect.js'
+import { types as typesCommand, validate as validateCommand } from './commands/types.js'
 import { readFileSync } from 'fs'
 import { fileURLToPath } from 'url'
 import { dirname, join } from 'path'
@@ -70,14 +71,9 @@ ${chalk.cyan('Examples:')}
   $ brainy vfs similar /code/Button.tsx
 
   ${chalk.dim('# Storage management')}
-  $ brainy storage status --quota
-  $ brainy storage lifecycle set ${chalk.dim('# Interactive mode')}
-  $ brainy storage cost-estimate
+  $ brainy storage status
   $ brainy storage batch-delete old-ids.txt
 
-  ${chalk.dim('# Interactive mode')}
-  $ brainy interactive
-
 ${chalk.cyan('Documentation:')}
   ${chalk.dim('Full docs:')} https://github.com/soulcraftlabs/brainy
   ${chalk.dim('Report issues:')} https://github.com/soulcraftlabs/brainy/issues
@@ -109,7 +105,7 @@ program
   .description('Advanced search with Triple Intelligence™ (interactive if no query)')
   .option('-k, --limit <number>', 'Number of results', '10')
   .option('--offset <number>', 'Skip N results (pagination)')
-  .option('-t, --threshold <number>', 'Similarity threshold (0-1)', '0.7')
+  .option('-t, --threshold <number>', 'Minimum similarity score (0-1); with --near, the proximity threshold')
   .option('--type <types>', 'Filter by type(s) - comma separated')
   .option('--where <json>', 'Metadata filters (JSON)')
   .option('--near <id>', 'Find items near this ID')
@@ -181,6 +177,23 @@ program
   .option('--pretty', 'Pretty print JSON')
   .action(coreCommands.diagnostics)
 
+// ===== Type Commands =====
+
+program
+  .command('types')
+  .description('List all NounType and VerbType values')
+  .option('--noun', 'Show noun types only')
+  .option('--verb', 'Show verb types only')
+  .option('--json', 'Output as JSON')
+  .action(typesCommand)
+
+program
+  .command('validate [type]')
+  .description('Check whether a type string is a valid NounType or VerbType (interactive if no type)')
+  .option('--verb', 'Validate as a verb type (default: noun type)')
+  .option('--json', 'Output as JSON')
+  .action(validateCommand)
+
 // ===== Neural Commands =====
 
 program
@@ -222,17 +235,6 @@ program
   .option('--children-only', 'Show only child hierarchy')
   .action(neuralCommands.hierarchy)
 
-program
-  .command('path <from> <to>')
-  .description('Find semantic path between items')
-  .option('--steps', 'Show step-by-step path')
-  .option('--max-hops <number>', 'Maximum path length', '5')
-  .action(() => {
-    console.log(chalk.yellow('\n⚠️  Semantic path finding coming soon'))
-    console.log(chalk.dim('This feature requires implementing graph traversal algorithms'))
-    console.log(chalk.dim('Use "brainy neighbors" and "brainy hierarchy" to explore connections'))
-  })
-
 program
   .command('outliers')
   .alias('anomalies')
@@ -457,89 +459,26 @@ program
 
 program
   .command('storage')
-  .description('💾 Storage management and cost optimization')
+  .description('💾 Storage management (filesystem + memory backends)')
   .addCommand(
     new Command('status')
-      .description('Show storage status and health')
-      .option('--detailed', 'Show detailed information')
-      .option('--quota', 'Show quota information (OPFS)')
+      .description('Show storage backend, counts, root directory, and writer lock')
+      .option('--json', 'Output as JSON')
+      .option('--pretty', 'Pretty-print JSON')
       .action((options) => {
         storageCommands.status(options)
       })
   )
-  .addCommand(
-    new Command('lifecycle')
-      .description('Lifecycle policy management')
-      .addCommand(
-        new Command('set')
-          .argument('[config-file]', 'Policy configuration file (JSON)')
-          .description('Set lifecycle policy (interactive if no file)')
-          .option('--validate', 'Validate before applying')
-          .action((configFile, options) => {
-            storageCommands.lifecycle.set(configFile, options)
-          })
-      )
-      .addCommand(
-        new Command('get')
-          .description('Get current lifecycle policy')
-          .option('-f, --format <type>', 'Output format (json|yaml)', 'json')
-          .action((options) => {
-            storageCommands.lifecycle.get(options)
-          })
-      )
-      .addCommand(
-        new Command('remove')
-          .description('Remove lifecycle policy')
-          .action((options) => {
-            storageCommands.lifecycle.remove(options)
-          })
-      )
-  )
-  .addCommand(
-    new Command('compression')
-      .description('Compression management (FileSystem)')
-      .addCommand(
-        new Command('enable')
-          .description('Enable gzip compression')
-          .action((options) => {
-            storageCommands.compression.enable(options)
-          })
-      )
-      .addCommand(
-        new Command('disable')
-          .description('Disable compression')
-          .action((options) => {
-            storageCommands.compression.disable(options)
-          })
-      )
-      .addCommand(
-        new Command('status')
-          .description('Show compression status')
-          .action((options) => {
-            storageCommands.compression.status(options)
-          })
-      )
-  )
   .addCommand(
     new Command('batch-delete')
       .argument('<file>', 'File containing entity IDs (one per line)')
-      .description('Batch delete with retry logic')
-      .option('--max-retries <n>', 'Maximum retry attempts', '3')
-      .option('--continue-on-error', 'Continue if some deletes fail')
+      .description('Delete a list of entities through the public delete path (with retry)')
+      .option('--max-retries <n>', 'Maximum retry attempts per ID', '3')
+      .option('--continue-on-error', 'Continue past IDs that still fail after retries')
       .action((file, options) => {
         storageCommands.batchDelete(file, options)
       })
   )
-  .addCommand(
-    new Command('cost-estimate')
-      .description('Estimate cloud storage costs')
-      .option('--provider <type>', 'Cloud provider (aws|gcs|azure|r2)')
-      .option('--size <gb>', 'Data size in GB')
-      .option('--operations <n>', 'Monthly operations')
-      .action((options) => {
-        storageCommands.costEstimate(options)
-      })
-  )
 
 // ===== Data Management Commands =====
 
@@ -742,9 +681,8 @@ program
 
 program
   .command('clean')
-  .description('Clean and optimize database')
-  .option('--remove-orphans', 'Remove orphaned items')
-  .option('--rebuild-index', 'Rebuild search index')
+  .description('Clear the database — ALL entities, relationships, and indexes (asks for confirmation)')
+  .option('-f, --force', 'Skip confirmation prompt')
   .action(utilityCommands.clean)
 
 program
@@ -785,17 +723,6 @@ program
   .description('Show the store\'s current generation watermark')
   .action(snapshotCommands.generation)
 
-// ===== Interactive Mode =====
-
-program
-  .command('interactive')
-  .alias('i')
-  .description('Start interactive REPL mode')
-  .action(async () => {
-    const { startInteractiveMode } = await import('./interactive.js')
-    await startInteractiveMode()
-  })
-
 // ===== Error Handling =====
 
 program.exitOverride()