The digest chain fallback is only needed for Gemini endpoints, not
for the Anthropic Messages API path. Remove the handler integration
while keeping the reusable service/repository layer for future use.
The previous fallback (step 3) in GenerateSessionHash hashed system +
all messages together, producing a different hash each round as the
conversation grew ([a] -> [a,b] -> [a,b,c]). This made fallback sticky
sessions ineffective for multi-turn conversations.
Implement per-message Trie digest chain matching (reusing Gemini's Trie
infrastructure) so that the previous round's chain is always a prefix
of the current round's chain, enabling reliable session affinity.
Remove threshold-based waiting in both sticky session and antigravity
pre-check paths. When a model is rate-limited, immediately clear the
sticky session and switch accounts instead of waiting for short durations.
1. Frontend: replace hardcoded antigravityDefaultMappings with async
fetch from GET /admin/accounts/antigravity/default-model-mapping,
eliminating the duplicate data source that caused frontend/backend
mapping inconsistency.
2. Backend: convert handleSmartRetry and antigravityRetryLoop from
standalone functions to AntigravityGatewayService methods, enabling
Redis cache sync (updateAccountModelRateLimitInCache) after both
rate-limit write paths — long-delay branch and retry-exhausted branch.
- GetAccessToken: add upstream branch to read api_key from credentials
- shouldTriggerAntigravitySmartRetry: relax check from IsOAuth to Platform-based
- isModelSupportedByAccount/WithContext: replace IsAntigravityModelSupported
whitelist with mapAntigravityModel for unified scheduling/forwarding logic
- mapAntigravityModel: fix edge case where wildcard target equals request model
- Update tests for new behavior and add custom model_mapping test cases
Change formatTime() to include seconds (HH:MM:SS) instead of only
hours and minutes (HH:MM). This gives users more precise information
about when rate limits will reset.
The default fallback cooldown when rate limit reset time cannot be
parsed was 5 minutes, which is too aggressive and causes accounts
to be unnecessarily locked out. Reduce to 30 seconds for faster
recovery. Config override still works (unit remains minutes).
When extended thinking is enabled, Claude API requires max_tokens >
thinking.budget_tokens. If misconfigured, this auto-adjusts max_tokens
to budget_tokens + 1000 instead of returning a 400 error.
- Add ensureMaxTokensGreaterThanBudget helper function
- Extract Gemini25FlashThinkingBudgetLimit constant (24576)
- Log adjustment for debugging
Ensures consistent line endings for SQL migration files, Go source,
shell scripts, YAML configs, and Dockerfiles. Fixes checksum mismatches
on Windows where CRLF line endings cause migration hash differences.
