dimSLAM docs

[jeff-hykin]

Adds dimos/mapping/dim_slam/README.md: ports, the six bring-up steps for a robot dimSLAM has never run on (cameras, extrinsics, sources, IMU, run, verify), and a table of the settings that have no sane default.

Docs only, no code change.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ All tests successful. No failed tests found.

@@                    Coverage Diff                     @@
##           jeff/feat/alfred_dim_slam    #3658   +/-   ##
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  Coverage                      77.79%   77.79%           
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  Files                           1296     1296           
  Lines                         123918   123918           
  Branches                       10852    10852           
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  Hits                           96402    96402           
  Misses                         24375    24375           
  Partials                        3141     3141           

Flag	Coverage Δ
OS-ubuntu-24.04-arm	72.78% <ø> (ø)
OS-ubuntu-latest	74.62% <ø> (ø)
Py-3.10	74.62% <ø> (+<0.01%)	⬆️
Py-3.11	74.62% <ø> (-0.01%)	⬇️
Py-3.12	74.62% <ø> (+<0.01%)	⬆️
Py-3.13	74.62% <ø> (+<0.01%)	⬆️
Py-3.14	74.62% <ø> (+<0.01%)	⬆️
Py-3.14t	74.62% <ø> (+<0.01%)	⬆️
SelfHosted-Large	30.11% <ø> (ø)
SelfHosted-Linux	35.30% <ø> (+<0.01%)	⬆️

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[greptile-apps]

Greptile Summary

Adds a dimSLAM bring-up guide covering ports, camera and transform setup, odometry fusion, IMU configuration, execution, verification, and robot-specific settings. The guide now correctly identifies OdometryPath as the visualization component used by demo-cuvslam-realsense.

Confidence Score: 5/5

No blocking failure remains.

The documented demo component was checked against the current blueprint, implementation, registry, and Python sources; the README matches the available component.

T-Rex Logs

What T-Rex did

• A reproducible validation script parsed the README and demo blueprint, confirmed OdometryPath is the component used by the demo, ensured OdometryHist does not appear in Python sources, and verified the component registry entry.
• The prior README text named OdometryHist at line 115 was captured, and subsequent validation ran with all repository assertions passing and exit code 0.
• Artifacts including the validation script and the passing logs were prepared and uploaded to support review.

_{Ran code and verified through T-Rex}

_{Reviews (23): Last reviewed commit: "Merge branch 'rb_alfred' into rb_docs" | Re-trigger Greptile}