machine_id and part_id are now optional in config — if not set, they fall
back to VIAM_MACHINE_ID and VIAM_MACHINE_PART_ID env vars injected by the
Viam agent. machine_id is still required (either via config or env).

Also fixes Config.Validate signature to match updated rdk interface
(now returns required deps, optional deps, error).

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

Before starting a cloudslam session, check that each configured sensor
has an appropriate data capture method enabled in the machine part's
config. Cameras require NextPointCloud; movement sensors require any
enabled capture method.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

After stopping a mapping session, fetch the session metadata and return
an error with the failure message if the session ended with END_STATUS_FAIL.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

While a job is active but no map has been received yet, PointCloudMap
returns a PCD point arc instead of the blank default. The arc grows from
a small sliver to a full circle over 5 minutes, giving the user visual
feedback that the session is running.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

- merge activeJob + jobStartTime into activeJobState struct; nil pointer
  replaces empty-string sentinel, and startedAt replaces the separate
  jobStartTime atomic so both fields are updated atomically
- wrap updatingMapName/updatingMapVersion into updatingMapInfo struct; nil
  replaces the != "" guard and fixes a latent bug where version could be
  set with an empty name
- clear activeJob in StopJob (stops polling) while keeping lastPointCloudURL
  so the final map stays visible after a session ends
- store logger on AppClient at construction; drop logger param from
  CheckSensorsDataCapture

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

part_id is now required (from config or env var), matching the existing
machine_id behavior. removes the dead partID != "" guard in initialize.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

machine_id and machine_part_id are now auto-populated from viam-server
env vars, so they no longer need to appear in the example config.
Update attribute table to reflect optional status and defaults.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

v1.62.2 was built with Go 1.23 and rejects Go 1.25.1 targets.
v1.64.8 is built with Go 1.26.1 and handles it correctly.

Also remove two deprecated config options:
- run.skip-dirs-use-default (already covered by issues.exclude-use-default)
- linters-settings.gofumpt.lang-version (moved to global run.go)

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

- set GOTOOLCHAIN=go$(GOVERSION) so golangci-lint is built with the Go
  version declared in go.mod, not whatever the CI host has installed
- replace deprecated slam.FromDependencies with slam.FromProvider
- replace deprecated res.GetFileId() with res.GetBinaryDataId()
- apply linter auto-fixes: proto getter style, range-over-int loop

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

adds a 5×7 dot-matrix font renderer (pcdtext.go) and draws
"WAITING FOR / SESSION TO START" centered inside the progress ring,
making it unambiguous to the viewer that this is not a real map.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

- Add lastSessionErr atomic to track failed sessions; polling thread
  checks metadata every cycle and sets it on END_STATUS_FAIL
- PointCloudMap returns a "SESSION FAILED" PCD when lastSessionErr is
  set, covering both pre-map and post-map failure cases
- Add D and L glyphs to font5x7 for "FAILED" text rendering
- Add SLAMMapURL helper on AppClient to deduplicate URL construction;
  fixes save-local-map missing page=slam (causing redirect to /fleet)

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

BinaryDataId is "org_id/location_id/file_id" but the frontend builds
the thumbnail URL as /files/{org}/{location}/{file_id}, so passing the
full composite value doubled the path segments. Extract just the
trailing file_id segment instead.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>