Playground improvements

[harjotgill]

• Add PROTOCOL field to access logs under the label http.flavor
• Move tanka/environment/tilt/apps to tanka/apps
• Provide ctlptl cluster instructions
• Isolate controller and agent namespaces

This change is 

[codecov]

Codecov Report

Base: 49.42% // Head: 49.42% // No change to project coverage 👍

Coverage data is based on head (3e9e030) compared to base (6114e59).
Patch has no changes to coverable lines.

❗ Current head 3e9e030 differs from pull request most recent head c470880. Consider uploading reports for the commit c470880 to get more accurate results

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #318   +/-   ##
=======================================
  Coverage   49.42%   49.42%           
=======================================
  Files         226      226           
  Lines       18594    18594           
=======================================
  Hits         9191     9191           
+ Misses       8812     8811    -1     
- Partials      591      592    +1     

Impacted Files	Coverage Δ
pkg/jobs/job.go	84.55% <0.00%> (-2.44%)	⬇️
operator/controllers/agent_reconciler.go	48.30% <0.00%> (-0.49%)	⬇️
...taplane/resources/classifier/extractors/compile.go	78.20% <0.00%> (+0.64%)	⬆️
operator/controllers/controller_reconciler.go	47.52% <0.00%> (+1.16%)	⬆️

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