Commit graph

66 commits

Author SHA1 Message Date
rcourtman
a393744894 Add in-app release highlights 2026-07-13 18:30:29 +01:00
rcourtman
9560fe6c07 feat(updates): surface digest-pinned Pro Docker update commands from the broker
A Docker install of the Pro runtime had no sane update path: the binary
self-updater refuses to run in a container, the customer compose file pins
the previous image digest (so `docker compose pull` never updates), and the
in-app guidance showed community `docker pull rcourtman/pulse:<tag>` commands
that silently downgrade the container to the community build - the same
failure mode 93bccaff1 fixed for binary installs.

The update check on the Pro binary already fetches the license server
download broker manifest (GET /v1/downloads/pulse-pro), which carries the
digest-pinned image ref plus ready-to-run compose commands. Relay that block
on UpdateInfo.dockerUpdate for Docker deployments, behind the existing
stable/rc channel guard, failing closed unless both compose commands
reference the digest-pinned ref (never a mutable tag).

Settings -> Updates now renders those commands as copy blocks when an update
is available, and the idle Docker box, the update banner, and the docker
update plan suppress every community-image command whenever the compiled
runtime identity is pro.

Contracts: api-contracts (update transport dockerUpdate block),
deployment-installability (Pro Docker update path), frontend-primitives
(install guide Pro-runtime guidance), with transport and settings-shell
proofs extended accordingly.
2026-07-10 16:03:59 +01:00
rcourtman
a0170d3252 Block silent downgrades on apply and give the updater a sanctioned rollback path
The in-app updater validated download URL and channel but never compared
the target against the running version, so any valid older release asset
URL installed silently while the UI presented it as an update. ApplyUpdate
now rejects targets at or below the running version on both the community
and Pro broker paths before any history entry or download, with an explicit
allowDowngrade opt-in on POST /api/updates/apply for sanctioned cases.

The rollback half already existed but nothing reached it: createBackup
retains three backups, restoreBackup works, and history records BackupPath,
yet no endpoint or UI called restoreBackup. RollbackToBackup restores the
retained backup recorded on a history entry after re-validating the path
against the managed backup roots, shares the update-in-flight slot with
ApplyUpdate, records an Action rollback history entry linked to the source
update, marks that update rolled_back, streams a restoring stage through
the existing status/SSE machinery, and restarts via the exit-for-systemd
path. POST /api/updates/rollback carries it with the same RequireAdmin plus
settings:write gating as apply. Rollback is purely local, so the Pro
edition gate never applies to it.

Settings now has the update history surface that was missing entirely:
nothing called /api/updates/history before. The Updates panel lists recent
updates with a Roll back action on successful entries whose backup is still
retained, behind a confirmation dialog naming the restore version, and the
rollback rides updateStore's shared pending-apply marker for the
post-restart toast. restoreBackup also honors PULSE_INSTALL_DIR now instead
of hardcoding /opt/pulse, matching createBackup.

Contract deltas ride along: api-contracts picks up the rollback transport
and downgrade-conflict semantics, agent-lifecycle and storage-recovery pin
rollback as server self-update plumbing, ai-runtime and cloud-paid pin the
update watcher stage vocabulary as non-assistant non-paid shell chrome, and
frontend-primitives adds UpdateHistorySection as the history/rollback
presentation owner with matching architecture proofs.
2026-07-10 01:46:08 +01:00
rcourtman
33d318a29e Delete the unreachable adapter Execute/Rollback update path and the unused UpdateQueue
The only production consumer of the UpdaterRegistry is the plan endpoint
(GET /api/updates/plan); every real apply runs through the in-Go pipeline
in manager.go ApplyUpdate, with concurrency held by updateMu/updateInFlight.
The InstallShAdapter Execute/Rollback path (install.sh piping, rollback
binary download, health wait) and the UpdateQueue were never called outside
tests, so fixes made there silently did nothing. Adapters are now plan
providers only: the Updater interface keeps SupportsApply, PrepareUpdate,
and GetDeploymentType, pinned by the new registry proof in
internal/api/updates_test.go.

The orphaned fetchAndVerifyReleaseSignature helper goes with it; its
fail-closed sidecar tests now exercise the manager's
downloadAndVerifyReleaseSignature directly. The deployment-installability
sshsig invariant now names the manager pipeline as the only surface that
fetches release artifacts, and api-contracts, storage-recovery, and
agent-lifecycle pin the same plan-provider-only shape at their update
transport boundaries. Stale adapter references in build-release.sh,
validate-release.sh, and the installtests comments are updated to match.
2026-07-10 01:14:40 +01:00
rcourtman
0c91799e0f Self-test the new binary before the in-app update swaps it in
Checksum and SSHSIG verification prove the downloaded artifact matches
what was published, not that it can run on this host or is the version
the user approved. The apply pipeline previously swapped the binary and
exited, relying on systemd to restart into an unproven executable; a
wrong-arch fallback asset or unstamped build would take Pulse down with
the backup left unused.

ApplyUpdate now locates the extracted binary and probes it with
--version before the backup and swap stages, failing the update with
zero changes applied when the probe fails or reports a version other
than the apply target. Same pattern the agent updater already uses.
Pinned in the deployment-installability contract with
internal/updates/selftest_test.go as the owned proof surface.
2026-07-10 00:44:01 +01:00
rcourtman
93bccaff18 Update the Pro binary in-app from the license server download broker
Some checks are pending
Build and Test / Secret Scan (push) Waiting to run
Build and Test / Frontend & Backend (push) Waiting to run
Canonical Governance / governance (push) Waiting to run
Core E2E Tests / Playwright Core E2E (shard 1/4) (push) Waiting to run
Core E2E Tests / Playwright Core E2E (shard 2/4) (push) Waiting to run
Core E2E Tests / Playwright Core E2E (shard 3/4) (push) Waiting to run
Core E2E Tests / Playwright Core E2E (shard 4/4) (push) Waiting to run
Core E2E Tests / E2E verdict (push) Blocked by required conditions
The in-app updater and the unattended timer both target the public
rcourtman/Pulse community assets, so a Pro install that used them was
silently downgraded to community. Guard 2 (983a89326) blocked in-app
apply on the Pro edition, which stopped the downgrade but left Pro
installs with no update path except manual portal downloads. That
friction is a plausible driver of the runtime split: as of 2026-07-08
only 10 of 66 active paid licenses have any Pro-runtime install.

Root fix: the compiled Pro binary now checks and applies updates
through the license server download broker (GET /v1/downloads/pulse-pro
with the installation token and instance fingerprint). The check
compares against the broker's pinned private release instead of GitHub,
respecting the stable/rc channel guard. Apply re-resolves fresh signed
R2 URLs at apply time, verifies the archive against the same pinned
pulse-installer SSHSIG key plus the broker manifest sha256, and refuses
GitHub-shaped download URLs outright. An unactivated Pro binary still
refuses with the portal fallback. The community edition path is
unchanged.

The update banner restores in-app apply for auto-updatable Pro
deployments and keeps the portal instructions for deployments the
updater cannot drive (Docker). scripts/pulse-auto-update.sh now skips
when the installed binary reports Pulse Pro so the unattended timer can
never reinstall community over Pro.

Note: internal/updates/pro_update.go and manager_pro_update_test.go for
this change landed one commit early inside 313552deb via a parallel
session committing a shared staged index; this commit completes the
wiring they belong to.
2026-07-08 23:39:37 +01:00
rcourtman
313552debc Pin the OAuth Tailscale path in the update-demo workflow test
TestUpdateDemoWorkflowUsesGovernedNetworkPath still asserted the retired
authkey: TS_AUTHKEY line; 0a9a29d63 moved update-demo-server.yml to the
OAuth client (TS_OAUTH_CLIENT_ID / TS_OAUTH_SECRET, tag:infra), so the
test now pins those lines instead.
2026-07-08 23:23:20 +01:00
rcourtman
983a89326f Block in-app self-update on the Pro binary to prevent silent downgrade
The in-app updater and install.sh both fetch the public community build from
github.com/rcourtman/Pulse. On non-Docker Pro installs (systemd, proxmoxve,
source) the "Apply Update" button was live, so applying an update replaced the
separately compiled Pro binary with community and silently stripped Audit,
RBAC, Reporting, and SSO from a paying customer. Docker was already blocked;
nothing else was.

Add a dependency-free pkg/edition marker (defaults to community) that the Pro
binary flips via enterpriseruntime.Initialize, mirroring the existing
coreaudit.SetLogger / server.SetBusinessHooks registration seam. ApplyUpdate
now refuses when the edition is Pro, pointing at the Private Release Access
portal (https://pulserelay.pro/download.html) and the install.sh --archive
path. The gate keys off the compiled binary, not license state: a community
binary with an active license still self-updates as before.

The update banner hides the in-app apply affordance and shows portal
instructions for the Pro runtime, keyed off the existing runtime-identity
signal (runtime.build) rather than a new payload field, so nothing extra is
plumbed through the version API and the frontend reuses the canonical
"which binary am I" contract. The backend gate is the hard guarantee; the
banner is the UX layer.

Guard 2 of the Pro download/update experience spec.
2026-07-08 10:02:04 +01:00
rcourtman
faefe6edc8 Remove 198 unreachable Go functions
Dead-code sweep. Functions flagged unreachable by golang.org/x/tools/cmd/deadcode
and confirmed unused across pulse, pulse-enterprise, pulse-pro and pulse-mobile by
adversarial cross-repo verification. Cross-module reachability was checked
explicitly (only pkg/ exported symbols are importable by other modules; internal/
packages and _test.go files are not). go build, go vet and test-compile all pass.
2026-06-03 12:29:37 +01:00
rcourtman
75d1a0477b Enforce upgrade readiness before v6 updates
Some checks are pending
Build and Test / Secret Scan (push) Waiting to run
Build and Test / Frontend & Backend (push) Waiting to run
Refs #1476
2026-05-28 17:22:01 +01:00
rcourtman
e1d1ec1d7c Add update readiness checks for v6 upgrades
Surface server upgrade readiness on update plans so v5 agent continuity and agent token scope issues are checked before install.
2026-05-28 16:47:49 +01:00
rcourtman
2f0468a87b Verify SSHSIG on in-app update artifacts
The unattended timer (scripts/pulse-auto-update.sh) and the public bootstrap
(scripts/install.sh, /install.sh) all verify the .sshsig sidecar against the
pinned pulse-installer ed25519 key before trusting a release artifact. The
in-app updater verified SHA256 only — same artifact, same root execution
context, lower trust bar. Closing the asymmetry: the in-app tarball download
in ApplyUpdate, adapter_installsh.go's install.sh download (piped into bash
as root), and the rollback binary download now fetch and verify the .sshsig
sidecar against the same pinned key, fail-closed.

The signing infrastructure (release_asset_common.sh, validate-release.sh,
backfill-release-assets.sh) already produces and validates these signatures
for every release; this teaches the Go updater to honor what the shell paths
have always required. ssh-keygen is shelled out to so the in-app updater
shares the exact trust path used by the unattended path, with a package-level
function variable for test injection so unit tests don't require ssh-keygen
on the build host.

Extends the deployment-installability contract's release-trust-fail-closed
invariant to cover the in-app updater paths.
2026-05-09 23:14:07 +01:00
rcourtman
87aba32540 Port installer disk preflight from v5 2026-05-01 20:28:11 +01:00
rcourtman
c6357c92a1 Harden self-hosted update runtime against low-disk drift
Refs #1408
2026-04-22 09:40:49 +01:00
rcourtman
58e67c7b19 Canonicalize usage-data telemetry reporting 2026-04-14 11:05:10 +01:00
rcourtman
7b8cec535c Fix updates mock deployment test 2026-04-11 15:06:44 +01:00
rcourtman
283f2e25ae Restore v6 development version semantics 2026-04-04 23:02:58 +01:00
rcourtman
7950cfe0e2 Canonicalize apply-update download URLs 2026-04-01 16:10:59 +01:00
rcourtman
6b45fd0502 Harden update history persistence root 2026-03-29 14:39:11 +01:00
rcourtman
4af6858405 Harden update manager directory scans 2026-03-29 14:23:13 +01:00
rcourtman
9a0794c4b0 Harden update manager outbound requests 2026-03-29 13:11:14 +01:00
rcourtman
2c1b90cc4e Reframe prerelease update copy 2026-03-25 11:25:41 +00:00
rcourtman
778a2577b6 feat: Pulse v6 release 2026-03-18 16:06:30 +00:00
rcourtman
12a5a98117 fix: SSE race conditions, alert user spoofing, and security status oracle
SSE Broadcaster:
- Add per-client mutex to prevent concurrent writes to ResponseWriter
- Fix data race in cleanupLoop reading LastActive without synchronization
- Update LastActive in SendHeartbeat so clients aren't incorrectly pruned
  after 5 minutes of idle heartbeat traffic

Alert Acknowledgements:
- Extract authenticated user from X-Authenticated-User header instead of
  hardcoding 'admin' or trusting request body's User field
- Prevents audit log spoofing and ensures accurate user attribution

Security Status Endpoint:
- Remove ?token= query param validation from public /api/security/status
- Prevents endpoint from acting as a token validity oracle for attackers
- Authentication still works via session cookies and X-API-Token header
2026-02-03 17:40:58 +00:00
rcourtman
7f7edfceb4 test: expand backend coverage 2026-01-25 21:08:44 +00:00
rcourtman
5f56efa88a Refactor: Core monitoring and update managers multi-tenancy
- Updated monitoring reload and metrics history to be tenant-aware
- Refactored update manager and checksum validation for multi-tenancy
- Enhanced test coverage for agent updates and metrics storage
2026-01-22 16:43:24 +00:00
rcourtman
098f645b34 chore: update Docker configs and installer
- Dockerfile: remove sensor proxy build target
- docker-compose.yml: remove proxy service configuration
- install.sh: simplify installer without proxy
- updates/manager.go: minor updates
2026-01-21 12:03:52 +00:00
rcourtman
1c22688d9b fix: standardize API version format and guest key separators
Closes #1115 (discussion feedback)

Two API consistency issues reported by @FabienD74:

1. Version format mismatch in /api/version:
   - currentVersion: "5.0.16" (no prefix)
   - latestVersion: "v5.0.16" (with prefix)

   Fixed: LatestVersion now strips the "v" prefix to match CurrentVersion format.

2. Guest ID separator inconsistency:
   - Some code used colons: "instance:node:vmid"
   - BuildGuestKey used dashes: "instance-node-vmid"

   Fixed: BuildGuestKey now uses colon separator matching the canonical
   format used by makeGuestID in the monitoring package. The existing
   legacy migration in GetWithLegacyMigration handles old dash-format
   entries in guest_metadata.json.
2026-01-19 22:20:18 +00:00
rcourtman
a6a8efaa65 test: Add comprehensive test coverage across packages
New test files with expanded coverage:

API tests:
- ai_handler_test.go: AI handler unit tests with mocking
- agent_profiles_tools_test.go: Profile management tests
- alerts_endpoints_test.go: Alert API endpoint tests
- alerts_test.go: Updated for interface changes
- audit_handlers_test.go: Audit handler tests
- frontend_embed_test.go: Frontend embedding tests
- metadata_handlers_test.go, metadata_provider_test.go: Metadata tests
- notifications_test.go: Updated for interface changes
- profile_suggestions_test.go: Profile suggestion tests
- saml_service_test.go: SAML authentication tests
- sensor_proxy_gate_test.go: Sensor proxy tests
- updates_test.go: Updated for interface changes

Agent tests:
- dockeragent/signature_test.go: Docker agent signature tests
- hostagent/agent_metrics_test.go: Host agent metrics tests
- hostagent/commands_test.go: Command execution tests
- hostagent/network_helpers_test.go: Network helper tests
- hostagent/proxmox_setup_test.go: Updated setup tests
- kubernetesagent/*_test.go: Kubernetes agent tests

Core package tests:
- monitoring/kubernetes_agents_test.go, reload_test.go
- remoteconfig/client_test.go, signature_test.go
- sensors/collector_test.go
- updates/adapter_installsh_*_test.go: Install adapter tests
- updates/manager_*_test.go: Update manager tests
- websocket/hub_*_test.go: WebSocket hub tests

Library tests:
- pkg/audit/export_test.go: Audit export tests
- pkg/metrics/store_test.go: Metrics store tests
- pkg/proxmox/*_test.go: Proxmox client tests
- pkg/reporting/reporting_test.go: Reporting tests
- pkg/server/*_test.go: Server tests
- pkg/tlsutil/extra_test.go: TLS utility tests

Total: ~8000 lines of new test code
2026-01-19 19:26:18 +00:00
rcourtman
d06ed2edb3 refactor: Add testability improvements to core packages
hostagent/commands.go:
- Extract execCommandContext as mockable variable

hostagent/proxmox_setup.go:
- Convert stateFilePath constants to variables (testable)
- Extract runCommand and lookPath as mockable functions
- Add duplicate comment (minor cleanup needed)

notifications/notifications.go:
- Add GetQueueStats() method for interface compliance
- Used by NotificationMonitor interface

updates/manager.go:
- Add AddSSEClient, RemoveSSEClient, GetSSECachedStatus methods
- Enables interface-based SSE client management

pkg/audit/export.go:
- Minor testability improvements

go.mod/go.sum:
- Add stretchr/objx v0.5.2 (test mocking dependency)
2026-01-19 19:25:38 +00:00
rcourtman
0b0b503919 feat: Enable update checks for Docker environments. Related to #1016 2026-01-02 14:22:40 +00:00
rcourtman
41e075b9ec fix(updates): Add RSS/Atom feed fallback for GitHub rate limits
When the GitHub API returns 403 (rate limited), Pulse now falls back
to parsing the releases.atom feed which doesn't count against API
rate limits. This ensures users can still check for updates even
when rate limited.

The feed parser:
- Extracts version tags from Atom feed entries
- Filters prereleases for stable channel users
- Returns the first matching release

Fixes #840
2025-12-20 10:54:14 +00:00
rcourtman
4f824ab148 style: Apply gofmt to 37 files
Standardize code formatting across test files and monitor.go.
No functional changes.
2025-12-02 17:21:48 +00:00
rcourtman
b9db9c140b docs: Add godoc comments to more exported functions
Add missing godoc comments to:
- BuildGuestKey in alerts/alerts.go
- GenerateMockData in mock/generator.go
- NewDockerUpdater, NewAURUpdater in updates/adapter_installsh.go
- NewMockUpdater in updates/mock_updater.go
2025-12-02 16:03:57 +00:00
rcourtman
0989e9c671 perf: Pre-compile regexes in updates/version package
Move regex compilation from function bodies to package-level variables
to avoid recompilation when parsing version strings.

Affected regexes:
- semverRe: Matches semantic version format (X.Y.Z-prerelease+build)
- rcNumRe: Extracts RC number from prerelease strings

These are called multiple times during version comparison and update checks.
2025-12-02 15:14:15 +00:00
rcourtman
31f358b5ae test: Add tests for updates package utility functions
- TestNormalizeGitDescribeVersion: Git describe format parsing
- TestSanitizeError: Error message length truncation
- TestStatusDelayForStage: Update stage delay logic
Coverage: updates 41.5% → 41.6%
2025-12-01 14:18:54 +00:00
rcourtman
c1fdb77b2c Add unit tests for UpdaterRegistry (internal/updates)
27 test cases covering:
- NewUpdaterRegistry initialization
- Register and Get operations
- Overwrite behavior when re-registering
- Error handling for unregistered deployment types
- Multiple deployment types
- UpdateRequest, UpdatePlan, UpdateProgress struct fields
- Mock updater interface compliance

Coverage 41.1% → 41.5%.
2025-11-30 22:19:06 +00:00
rcourtman
bb2090bb26 Add unit tests for UpdateHistory (internal/updates)
47 test cases covering:
- NewUpdateHistory: directory creation, loading existing entries
- CreateEntry: event ID generation, timestamp handling, persistence
- UpdateEntry: updates, persistence verification, error handling
- GetEntry: retrieval by ID, non-existent entry errors
- ListEntries: filtering by status/action/deployment type, limits
- GetLatestSuccessful: finding recent successful entries
- Cache management: trimming when exceeding max size
- LoadCache: malformed JSON handling, empty lines
- Type definitions and constant validation
2025-11-30 20:34:40 +00:00
rcourtman
db7adea2a1 Add unit tests for InstallShAdapter utility functions
- Test parseProgress: 23 test cases for progress parsing from install.sh output
- Test readLastLines: 11 test cases including edge cases
- Test version pattern validation: 45 test cases for command injection prevention
- Test DockerUpdater and AURUpdater basic functionality
- Fix bug in readLastLines: handle n<=0 to prevent slice bounds panic

Coverage increased from 35.9% to 38.2%
2025-11-30 04:04:27 +00:00
rcourtman
6e45073207 Add unit tests for version utility functions
Test coverage for pure functions in internal/updates/version.go:
- Version.String() - 6 test cases
- Version.Compare() - 14 test cases (major/minor/patch/prerelease)
- Version.IsNewerThan() - 4 test cases
- Version.IsPrerelease() - 4 test cases
- compareInts() - 7 test cases
- extractRCNumber() - 12 test cases
- envBool() - 17 test cases
- sanitizePrereleaseIdentifier() - 14 test cases

Coverage: 35.2% -> 35.9%
2025-11-30 02:03:35 +00:00
rcourtman
1b2b730b51 Add unit tests for ParseVersion function
Tests basic version parsing, v prefix stripping, prerelease,
build metadata, and error cases for invalid input.
2025-11-29 16:00:44 +00:00
rcourtman
d425bc3df4 fix: multiple agent installation and update issues
- Default enableDocker to false in UI to prevent unintended Docker
  agent activation on host-only installs (Related to #766)
- Deploy agent scripts and binaries during web UI upgrades, not just
  the main binary (Related to #760)
- Apply symlink resolution fix to standalone docker agent self-update
  to prevent cross-device rename failures (Related to #737)
2025-11-27 15:49:03 +00:00
rcourtman
c439a83fba chore: remove additional dead code
Remove 241 lines of unreachable code across internal and pkg:
- internal/crypto/crypto.go: unused NewCryptoManager wrapper
- internal/monitoring/scheduler.go: unused fixedIntervalSelector type
- internal/ssh/knownhosts/manager.go: unused hostKeyExists function
- internal/updates/manager.go: unused getLatestRelease wrapper
- internal/updates/updater.go: unused GetAll method
- pkg/discovery/discovery.go: unused scanWorker and runPhase (legacy compat)
- pkg/proxmox/client.go: unused post, getTaskStatus, waitForTaskCompletion, getTaskLog
- pkg/proxmox/cluster_client.go: unused markUnhealthy wrapper
2025-11-27 05:13:26 +00:00
rcourtman
01f7d81d38 style: fix gofmt formatting inconsistencies
Run gofmt -w to fix tab/space inconsistencies across 33 files.
2025-11-26 23:44:36 +00:00
rcourtman
6853a0ffd1 feat: serve install scripts from GitHub releases instead of main branch
Scripts like install.sh and install-sensor-proxy.sh are now attached
as release assets and downloaded from releases/latest/download/ URLs.
This ensures users always get scripts compatible with their installed
version, even while development continues on main.

Changes:
- build-release.sh: copy install scripts to release directory
- create-release.yml: upload scripts as release assets
- Updated all documentation and code references to use release URLs
- Scripts reference each other via release URLs for consistency
2025-11-26 08:59:59 +00:00
rcourtman
a62268e36a Improve update procedure tracking 2025-11-15 16:43:42 +00:00
rcourtman
82a2eebb3f Improve update integration diagnostics 2025-11-12 22:27:05 +00:00
rcourtman
6a1a88217f Add release dry run workflow and API update integration test 2025-11-12 21:02:52 +00:00
rcourtman
7b9d31066c Fix: Skip draft releases in update checker
Bug: Pulse was showing update notifications for draft releases because
the update checker didn't filter them out.

The GitHub API returns draft releases in the releases endpoint, and
Pulse was treating them as available updates even though they're not
published yet.

Fix:
- Added Draft field to ReleaseInfo struct
- Added draft filtering in both RC and stable channel logic
- Draft releases are now skipped with debug logging

This prevents users from seeing "Update available" notifications
when maintainers create draft releases during the release workflow.
2025-11-12 12:31:58 +00:00
Claude
0af921dc23 Refactor update service to eliminate polling and race conditions
This commit implements a comprehensive refactoring of the update system
to address race conditions, redundant polling, and rate limiting issues.

Backend changes:
- Add job queue system to ensure only ONE update runs at a time
- Implement Server-Sent Events (SSE) for real-time update progress
- Add rate limiting to /api/updates/status (5-second minimum per client)
- Create SSE broadcaster for push-based status updates
- Integrate job queue with update manager for atomic operations
- Add comprehensive unit tests for queue and SSE components

Frontend changes:
- Update UpdateProgressModal to use SSE as primary mechanism
- Implement automatic fallback to polling when SSE unavailable
- Maintain backward compatibility with existing update flow
- Clean up SSE connections on component unmount

API changes:
- Add new endpoint: GET /api/updates/stream (SSE)
- Enhance /api/updates/status with client-based rate limiting
- Return cached status with appropriate headers when rate limited

Benefits:
- Eliminates 429 rate limit errors during updates
- Only one update job can run at a time (prevents race conditions)
- Real-time updates via SSE reduce unnecessary polling
- Graceful degradation to polling when SSE unavailable
- Better resource utilization and reduced server load

Testing:
- All existing tests pass
- New unit tests for queue and SSE functionality
- Integration tests verify complete update flow
2025-11-11 09:33:05 +00:00