Fix 19 test failures: missing security attr, nosec inside f-strings, stale test mock

fix: initialize parsed_response to prevent UnboundLocalError crashing all streaming responses

chore: bump version to 0.5.20

fix: eliminate prefix cache busts from frozen count underestimation

Merge pull request #110 from rrubayet321/main

Fix Bedrock/Vertex auth regression: don't forward api_key for env-auth providers (#105)

Fix Strands SDK content block tokenization (#111)

chore: suppress bandit security warnings for URL and SQL operations and add URL scheme validation

chore: add nosec B324 annotations to non-cryptographic MD5 usages and update temporary database path to use system temp directory

chore: add dependency list and security/linting audit reports

Merge pull request #107 from JerrettDavis/feat/extended-cache-ttl-metrics

Route diffs to DiffCompressor via Magika label mapping

fix: stabilize cache stats typing

test: align anthropic cache stability fixtures

Merge pull request #108 from JerrettDavis/fix/openclaw-discord-msg-content-filter

fix(openclaw): normalize engine messages for discord

Merge upstream/main into feat/extended-cache-ttl-metrics

Remove OSS_PR_STRATEGY.md from public repo

Merge pull request #106 from JerrettDavis/fix/openclaw-local-install-hook

Select Headroom context engine on install

Add OpenClaw hook shim for local link installs

Fix OpenClaw dist plugin installs

Add observed cache TTL metrics and dashboard coverage

Bump to v0.5.19: cache stats fixes, Codex WS fix, compression-vs-cache tracking

Harden cache validation reporting and TTL analysis

Token-level cache hit rate, compression-vs-cache tracking, dashboard SQL, security plan

Fix Codex WebSocket HTTP 500: ChatGPT auth routing, correct beta header, HTTP fallback (#71)

Merge pull request #104 from pacifio/main

typescript coverage

Fix review regressions in compare, wrap, and Docker

Harden anthropic cache-mode replay stability

Fix CI regressions for cache benchmark work

Add Anthropic cache-mode delta replay

Harden Anthropic cache mode stability

Improve Claude cache simulation accounting

Add memory-conscious Claude session benchmark harness

Clarify token vs cache run modes in docs

Remove obsolete Ruff UP038 ignore to stabilize CI lint output

Fix CI lint/format failures after proxy mode hardening

Harden cache-mode immutability for OpenAI and fix stats mode reporting

Rebrand proxy modes to token/cache and harden cache-mode stability

Merge remote-tracking branch 'upstream/main' into fix/anthropic-prefix-cache-stability

Harden Anthropic prefix cache stability across proxy and batch paths

Merge pull request #101 from pratikbin/main

Merge branch 'chopratejas:main' into main

refactor(docker): migrate to bake with multi-variant distroless images

Fix headroom learn writing ~/CLAUDE.md instead of ~/.claude/CLAUDE.md

Fix remaining review issues: null safety, compressed count, batch tokens

Disable image compression until token counting is accurate

Fix code review issues: batch NameError, null safety, token types