fix: address GitHub issues #511, #517, #527, #531

- #511: Add gemini-3-flash model to GeminiAgent (type, RPM limits, validation)
- #517: Replace PowerShell with WMIC for Windows process management (fixes Git Bash/WSL)
- #527: Add Apple Silicon Homebrew paths for bun and uv detection
- #531: Remove duplicate type definitions from export-memories.ts using bridge file

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

plugin/scripts/smart-install.js

@@ -32,7 +32,7 @@ function isBunInstalled() {
   // Check common installation paths (handles fresh installs before PATH reload)
   const bunPaths = IS_WINDOWS
     ? [join(homedir(), '.bun', 'bin', 'bun.exe')]
-    : [join(homedir(), '.bun', 'bin', 'bun'), '/usr/local/bin/bun'];
+    : [join(homedir(), '.bun', 'bin', 'bun'), '/usr/local/bin/bun', '/opt/homebrew/bin/bun'];
 
   return bunPaths.some(existsSync);
 }
@@ -56,7 +56,7 @@ function getBunPath() {
   // Check common installation paths
   const bunPaths = IS_WINDOWS
     ? [join(homedir(), '.bun', 'bin', 'bun.exe')]
-    : [join(homedir(), '.bun', 'bin', 'bun'), '/usr/local/bin/bun'];
+    : [join(homedir(), '.bun', 'bin', 'bun'), '/usr/local/bin/bun', '/opt/homebrew/bin/bun'];
 
   for (const bunPath of bunPaths) {
     if (existsSync(bunPath)) return bunPath;
@@ -102,7 +102,7 @@ function isUvInstalled() {
   // Check common installation paths (handles fresh installs before PATH reload)
   const uvPaths = IS_WINDOWS
     ? [join(homedir(), '.local', 'bin', 'uv.exe'), join(homedir(), '.cargo', 'bin', 'uv.exe')]
-    : [join(homedir(), '.local', 'bin', 'uv'), join(homedir(), '.cargo', 'bin', 'uv'), '/usr/local/bin/uv'];
+    : [join(homedir(), '.local', 'bin', 'uv'), join(homedir(), '.cargo', 'bin', 'uv'), '/usr/local/bin/uv', '/opt/homebrew/bin/uv'];
 
   return uvPaths.some(existsSync);
 }
@@ -156,7 +156,7 @@ function installBun() {
       // Try common installation paths
       const bunPaths = IS_WINDOWS
         ? [join(homedir(), '.bun', 'bin', 'bun.exe')]
-        : [join(homedir(), '.bun', 'bin', 'bun'), '/usr/local/bin/bun'];
+        : [join(homedir(), '.bun', 'bin', 'bun'), '/usr/local/bin/bun', '/opt/homebrew/bin/bun'];
 
       for (const bunPath of bunPaths) {
         if (existsSync(bunPath)) {
@@ -221,7 +221,7 @@ function installUv() {
       // Try common installation paths
       const uvPaths = IS_WINDOWS
         ? [join(homedir(), '.local', 'bin', 'uv.exe'), join(homedir(), '.cargo', 'bin', 'uv.exe')]
-        : [join(homedir(), '.local', 'bin', 'uv'), join(homedir(), '.cargo', 'bin', 'uv'), '/usr/local/bin/uv'];
+        : [join(homedir(), '.local', 'bin', 'uv'), join(homedir(), '.cargo', 'bin', 'uv'), '/usr/local/bin/uv', '/opt/homebrew/bin/uv'];
 
       for (const uvPath of uvPaths) {
         if (existsSync(uvPath)) {

scripts/export-memories.ts

@@ -9,80 +9,13 @@ import { writeFileSync } from 'fs';
 import { homedir } from 'os';
 import { join } from 'path';
 import { SettingsDefaultsManager } from '../src/shared/SettingsDefaultsManager';
-
-interface ObservationRecord {
-  id: number;
-  memory_session_id: string;
-  project: string;
-  text: string | null;
-  type: string;
-  title: string;
-  subtitle: string | null;
-  facts: string | null;
-  narrative: string | null;
-  concepts: string | null;
-  files_read: string | null;
-  files_modified: string | null;
-  prompt_number: number;
-  discovery_tokens: number | null;
-  created_at: string;
-  created_at_epoch: number;
-}
-
-interface SdkSessionRecord {
-  id: number;
-  content_session_id: string;
-  memory_session_id: string;
-  project: string;
-  user_prompt: string;
-  started_at: string;
-  started_at_epoch: number;
-  completed_at: string | null;
-  completed_at_epoch: number | null;
-  status: string;
-}
-
-interface SessionSummaryRecord {
-  id: number;
-  memory_session_id: string;
-  project: string;
-  request: string | null;
-  investigated: string | null;
-  learned: string | null;
-  completed: string | null;
-  next_steps: string | null;
-  files_read: string | null;
-  files_edited: string | null;
-  notes: string | null;
-  prompt_number: number;
-  discovery_tokens: number | null;
-  created_at: string;
-  created_at_epoch: number;
-}
-
-interface UserPromptRecord {
-  id: number;
-  content_session_id: string;
-  prompt_number: number;
-  prompt_text: string;
-  created_at: string;
-  created_at_epoch: number;
-}
-
-interface ExportData {
-  exportedAt: string;
-  exportedAtEpoch: number;
-  query: string;
-  project?: string;
-  totalObservations: number;
-  totalSessions: number;
-  totalSummaries: number;
-  totalPrompts: number;
-  observations: ObservationRecord[];
-  sessions: SdkSessionRecord[];
-  summaries: SessionSummaryRecord[];
-  prompts: UserPromptRecord[];
-}
+import type {
+  ObservationRecord,
+  SdkSessionRecord,
+  SessionSummaryRecord,
+  UserPromptRecord,
+  ExportData
+} from './types/export.js';
 
 async function exportMemories(query: string, outputFile: string, project?: string) {
   try {

scripts/smart-install.js

@@ -17,11 +17,11 @@ const IS_WINDOWS = process.platform === 'win32';
 // Common installation paths (handles fresh installs before PATH reload)
 const BUN_COMMON_PATHS = IS_WINDOWS
   ? [join(homedir(), '.bun', 'bin', 'bun.exe')]
-  : [join(homedir(), '.bun', 'bin', 'bun'), '/usr/local/bin/bun'];
+  : [join(homedir(), '.bun', 'bin', 'bun'), '/usr/local/bin/bun', '/opt/homebrew/bin/bun'];
 
 const UV_COMMON_PATHS = IS_WINDOWS
   ? [join(homedir(), '.local', 'bin', 'uv.exe'), join(homedir(), '.cargo', 'bin', 'uv.exe')]
-  : [join(homedir(), '.local', 'bin', 'uv'), join(homedir(), '.cargo', 'bin', 'uv'), '/usr/local/bin/uv'];
+  : [join(homedir(), '.local', 'bin', 'uv'), join(homedir(), '.cargo', 'bin', 'uv'), '/usr/local/bin/uv', '/opt/homebrew/bin/uv'];
 
 /**
  * Get the Bun executable path (from PATH or common install locations)

scripts/types/export.ts

@@ -0,0 +1,96 @@
+/**
+ * Export/Import types for memory data
+ *
+ * These types represent the structure of exported memory data.
+ * They are aligned with the actual database schema and include all fields
+ * needed for complete data export and import operations.
+ */
+
+/**
+ * Observation record as stored in the database and exported
+ */
+export interface ObservationRecord {
+  id: number;
+  memory_session_id: string;
+  project: string;
+  text: string | null;
+  type: string;
+  title: string;
+  subtitle: string | null;
+  facts: string | null;
+  narrative: string | null;
+  concepts: string | null;
+  files_read: string | null;
+  files_modified: string | null;
+  prompt_number: number;
+  discovery_tokens: number | null;
+  created_at: string;
+  created_at_epoch: number;
+}
+
+/**
+ * SDK Session record as stored in the database and exported
+ */
+export interface SdkSessionRecord {
+  id: number;
+  content_session_id: string;
+  memory_session_id: string;
+  project: string;
+  user_prompt: string;
+  started_at: string;
+  started_at_epoch: number;
+  completed_at: string | null;
+  completed_at_epoch: number | null;
+  status: string;
+}
+
+/**
+ * Session Summary record as stored in the database and exported
+ */
+export interface SessionSummaryRecord {
+  id: number;
+  memory_session_id: string;
+  project: string;
+  request: string | null;
+  investigated: string | null;
+  learned: string | null;
+  completed: string | null;
+  next_steps: string | null;
+  files_read: string | null;
+  files_edited: string | null;
+  notes: string | null;
+  prompt_number: number;
+  discovery_tokens: number | null;
+  created_at: string;
+  created_at_epoch: number;
+}
+
+/**
+ * User Prompt record as stored in the database and exported
+ */
+export interface UserPromptRecord {
+  id: number;
+  content_session_id: string;
+  prompt_number: number;
+  prompt_text: string;
+  created_at: string;
+  created_at_epoch: number;
+}
+
+/**
+ * Complete export data structure
+ */
+export interface ExportData {
+  exportedAt: string;
+  exportedAtEpoch: number;
+  query: string;
+  project?: string;
+  totalObservations: number;
+  totalSessions: number;
+  totalSummaries: number;
+  totalPrompts: number;
+  observations: ObservationRecord[];
+  sessions: SdkSessionRecord[];
+  summaries: SessionSummaryRecord[];
+  prompts: UserPromptRecord[];
+}

src/services/infrastructure/ProcessManager.ts

@@ -88,12 +88,15 @@ export async function getChildProcesses(parentPid: number): Promise<number[]> {
   }
 
   try {
-    const cmd = `powershell -Command "Get-CimInstance Win32_Process | Where-Object { $_.ParentProcessId -eq ${parentPid} } | Select-Object -ExpandProperty ProcessId"`;
+    const cmd = `wmic process where "parentprocessid=${parentPid}" get processid /format:list`;
     const { stdout } = await execAsync(cmd, { timeout: 60000 });
     return stdout
       .trim()
       .split('\n')
-      .map(s => parseInt(s.trim(), 10))
+      .map(line => {
+        const match = line.match(/ProcessId=(\d+)/i);
+        return match ? parseInt(match[1], 10) : NaN;
+      })
       .filter(n => !isNaN(n) && Number.isInteger(n) && n > 0);
   } catch (error) {
     // Shutdown cleanup - failure is non-critical, continue without child process cleanup
@@ -167,8 +170,8 @@ export async function cleanupOrphanedProcesses(): Promise<void> {
 
   try {
     if (isWindows) {
-      // Windows: Use PowerShell Get-CimInstance to find chroma-mcp processes
-      const cmd = `powershell -Command "Get-CimInstance Win32_Process | Where-Object { $_.Name -like '*python*' -and $_.CommandLine -like '*chroma-mcp*' } | Select-Object -ExpandProperty ProcessId"`;
+      // Windows: Use WMIC to find chroma-mcp processes (avoids PowerShell $_ issues in Git Bash/WSL)
+      const cmd = `wmic process where "name like '%python%' and commandline like '%chroma-mcp%'" get processid /format:list`;
       const { stdout } = await execAsync(cmd, { timeout: 60000 });
 
       if (!stdout.trim()) {
@@ -176,12 +179,15 @@ export async function cleanupOrphanedProcesses(): Promise<void> {
         return;
       }
 
-      const pidStrings = stdout.trim().split('\n');
-      for (const pidStr of pidStrings) {
-        const pid = parseInt(pidStr.trim(), 10);
-        // SECURITY: Validate PID is positive integer before adding to list
-        if (!isNaN(pid) && Number.isInteger(pid) && pid > 0) {
-          pids.push(pid);
+      const lines = stdout.trim().split('\n');
+      for (const line of lines) {
+        const match = line.match(/ProcessId=(\d+)/i);
+        if (match) {
+          const pid = parseInt(match[1], 10);
+          // SECURITY: Validate PID is positive integer before adding to list
+          if (!isNaN(pid) && Number.isInteger(pid) && pid > 0) {
+            pids.push(pid);
+          }
         }
       }
     } else {

src/services/worker/GeminiAgent.ts

@@ -36,7 +36,8 @@ export type GeminiModel =
   | 'gemini-2.5-flash'
   | 'gemini-2.5-pro'
   | 'gemini-2.0-flash'
-  | 'gemini-2.0-flash-lite';
+  | 'gemini-2.0-flash-lite'
+  | 'gemini-3-flash';
 
 // Free tier RPM limits by model (requests per minute)
 const GEMINI_RPM_LIMITS: Record<GeminiModel, number> = {
@@ -45,6 +46,7 @@ const GEMINI_RPM_LIMITS: Record<GeminiModel, number> = {
   'gemini-2.5-pro': 5,
   'gemini-2.0-flash': 15,
   'gemini-2.0-flash-lite': 30,
+  'gemini-3-flash': 5,
 };
 
 // Track last request time for rate limiting
@@ -373,6 +375,7 @@ export class GeminiAgent {
       'gemini-2.5-pro',
       'gemini-2.0-flash',
       'gemini-2.0-flash-lite',
+      'gemini-3-flash',
     ];
 
     let model: GeminiModel;