feat: account safety, quota monitoring, and stability fixes (#530)

* fix(cliproxy): migrate deprecated gemini-claude-* model names to upstream claude-* names (#515)

* fix(cliproxy): migrate deprecated gemini-claude-* model names to upstream claude-* names

CLIProxyAPI registry no longer recognizes the gemini-claude-* prefix convention.
Model names in catalog, base config, and user settings are migrated to upstream
claude-* names. Auto-migration in env-builder rewrites existing user settings on
load and persists the change.

Closes #513

* fix: address code review feedback — sync UI layer and add migration tests

- Sync UI isNativeGeminiModel() with backend (remove gemini-claude- exclusion)
- Update UI model catalog agy entries from gemini-claude-* to claude-*
- Update CI/CD workflow and code-reviewer default model names
- Add unit tests for migrateDeprecatedModelNames() logic

* fix(hooks): isolate image type check before error-prone processing (#514)

* fix(hooks): isolate image type check before error-prone processing

Restructure processHook() into two phases so non-image Read calls
never see hook error messages. Phase 1 defensively checks tool name
and file extension, exiting 0 silently on any failure. Phase 2 only
runs for confirmed image/PDF files where errors are relevant.

Closes #511

* fix(hooks): sync image analyzer hook file on every profile launch

Add installImageAnalyzerHook() call to cliproxy executor, matching
the existing installWebSearchHook() pattern. This ensures the .cjs
file in ~/.ccs/hooks/ gets refreshed from the npm package on every
launch, so users receive hook updates after npm update.

* chore(release): 7.41.0-dev.1 [skip ci]

* fix(cliproxy): add fork:true for Claude model aliases in config generator (#523)

Config generator now outputs fork:true for Claude model alias entries,
ensuring both upstream (claude-*) and aliased (gemini-claude-*) model
names appear in /v1/models listings. Also preserves fork flag when
parsing user-added aliases during config regeneration.

Bumps config version to v7 to trigger regeneration on next ccs doctor.

Closes #522

* chore(release): 7.41.0-dev.2 [skip ci]

* feat(cliproxy): add account safety guards to prevent Google account bans (#516)

* feat(cliproxy): add account safety guards to prevent Google account bans

Implements cross-provider isolation to prevent Google from flagging
concurrent OAuth usage across different client IDs (ref: #509, #512).

Three pillars:
1. Auto-pause enforcement at session launch — conflicting accounts in
   other Google OAuth providers are paused so CLIProxyAPI can't use them,
   restored on session exit with crash recovery via auto-paused.json
2. Ban/disable detection — error responses matching Google ban patterns
   auto-pause the affected account to prevent further damage
3. Cross-provider conflict warnings during OAuth registration

Key design decisions:
- PID-based session tracking for crash recovery (dead PID = restore)
- Timestamp comparison prevents restoring ban-paused accounts on exit
- Schema validation on auto-paused.json prevents corrupted state
- Falls back to warn-only when another session is managing isolation

* fix(cliproxy): address code review feedback (attempt 1/5)

- Re-read auto-paused.json before write in enforceProviderIsolation to
  reduce concurrent write race window
- Use actual email from registry for display instead of raw accountId
- Export maskEmail for testability
- Add 27 unit tests covering ban detection, email masking,
  cross-provider duplicate detection, enforcement lifecycle,
  crash recovery, and timestamp-guarded restore

* fix(cliproxy): address remaining review feedback (attempt 2/5)

- Add handleBanDetection test verifying account pause on ban error
- Add warnCrossProviderDuplicates tests (true/false/non-Google)
- Document PID reuse limitation in isPidAlive JSDoc comment

* chore(release): 7.41.0-dev.3 [skip ci]

* feat(cliproxy): runtime quota monitoring during active sessions (#529)

* feat(cliproxy): add runtime quota monitoring during active sessions

Adds adaptive background quota polling to detect and respond to quota
exhaustion during active CLIProxy sessions. Prevents rate-limit-driven
account bans by auto-cooling exhausted accounts and switching defaults.

- Adaptive polling: 300s normal, 60s at 20% threshold, stops at 0%
- Stderr warnings at 20%, boxed exhaustion alerts at 0%
- Cooldown + default switch on exhaustion (existing patterns)
- Configurable via quota_management.runtime_monitor in config.yaml
- Timer.unref() prevents blocking process exit
- monitorStopped guard for in-flight poll safety

Closes #524

* fix: address code review feedback (attempt 1/5)

- M1: Round quotaPercent display with Math.round() to avoid ugly floats
- M2: Rename exhaust_threshold -> exhaustion_threshold for consistency
  with existing auto.exhaustion_threshold config field
- M3: Replace async not.toThrow() with direct await assertion pattern

* fix: address code review feedback (attempt 2/5)

- Remove .claude/agent-memory/ from tracking and add to .gitignore
- Unify cooldown_minutes default to 5 (was 10 in runtime_monitor, 5 in auto)
- Add threshold validation in startQuotaMonitor (warn > exhaustion)
- Document intentional post-switch monitoring gap in code comment

* chore(release): 7.41.0-dev.4 [skip ci]

* fix(cliproxy): mask email in ban detection and fix JSDoc default

- Use maskEmail() in handleBanDetection output for consistency
- Fix cooldown_minutes JSDoc: default is 5, not 10

* chore(release): 7.41.0-dev.5 [skip ci]

* fix(cliproxy): address all review feedback (Low + informational)

- Add sync constraint comment on process.exit handler (executor)
- Add TOCTOU race acceptability comment (account-safety)
- Mask email in handleQuotaExhaustion reason string
- Use realistic exhaustion_threshold (5) in test configs

* chore(release): 7.41.0-dev.6 [skip ci]

---------

Co-authored-by: github-actions[bot] <github-actions[bot]@users.noreply.github.com>

lib/hooks/image-analyzer-transformer.cjs

@@ -761,14 +761,16 @@ process.stdin.on('error', () => {
 
 /**
  * Main hook processing logic
+ *
+ * Two-phase design: Phase 1 filters non-image Read calls silently (exit 0).
+ * Phase 2 only runs for confirmed image/PDF files, so error messages are
+ * always relevant and never confuse users reading code or text files.
  */
 async function processHook() {
+  // Phase 1: Fast bail-out for non-image files
+  // Any failure here → pass through silently to native Read
+  let filePath;
   try {
-    // Skip for native accounts or explicit disable
-    if (shouldSkipHook()) {
-      process.exit(0);
-    }
-
     const data = JSON.parse(input);
 
     // Only handle Read tool
@@ -776,23 +778,35 @@ async function processHook() {
       process.exit(0);
     }
 
-    const filePath = data.tool_input?.file_path || '';
+    filePath = data.tool_input?.file_path || '';
 
     if (!filePath) {
       process.exit(0);
     }
 
+    // Check file extension BEFORE any other processing — this is the key gate
+    // that ensures non-image Read calls never see hook errors
+    if (!isAnalyzableFile(filePath)) {
+      process.exit(0);
+    }
+  } catch {
+    // stdin parse failure or unexpected error → pass through silently
+    process.exit(0);
+  }
+
+  // Phase 2: Image/PDF file processing — errors here are relevant to the user
+  try {
+    // Skip for native accounts or explicit disable
+    if (shouldSkipHook()) {
+      process.exit(0);
+    }
+
     // Check if file exists
     if (!fs.existsSync(filePath)) {
       // Let native Read handle the error
       process.exit(0);
     }
 
-    // Check if file is analyzable
-    if (!isAnalyzableFile(filePath)) {
-      process.exit(0);
-    }
-
     // Check file size
     const stats = fs.statSync(filePath);
     if (stats.size >= MAX_FILE_SIZE_BYTES) {
@@ -843,14 +857,7 @@ async function processHook() {
       console.error('[CCS Hook] Error:', err.message);
     }
 
-    // Try to extract file path from parsed input
-    let filePath = 'unknown file';
-    try {
-      const data = JSON.parse(input);
-      filePath = data.tool_input?.file_path || 'unknown file';
-    } catch {
-      // Ignore parse errors
-    }
+    // filePath is guaranteed set by Phase 1 — only image files reach here
 
     // Categorize error by message pattern
     const errMsg = err.message || '';