Separate agentic and classic notebook into two components

[FriedhelmWS]

Description

Screen.Recording.2025-10-14.at.15.35.13.mov

Issues Resolved

Check List

• New functionality includes testing.
  • All tests pass, including unit test, integration test and doctest
• New functionality has been documented.
  • New functionality has javadoc added
  • New functionality has user manual doc added
• Commits are signed per the DCO using --signoff

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.
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[codecov]

Codecov Report

❌ Patch coverage is 75.00000% with 22 lines in your changes missing coverage. Please review.
✅ Project coverage is 65.78%. Comparing base (d713da8) to head (0101f58).

Files with missing lines	Patch %	Lines
...mponents/notebooks/components/classic_notebook.tsx	76.19%	20 Missing ⚠️
...lic/components/notebooks/components/note_table.tsx	50.00%	1 Missing and 1 partial ⚠️

Additional details and impacted files

@@                     Coverage Diff                     @@
##           hypothesis-investigtion     #159      +/-   ##
===========================================================
+ Coverage                    58.34%   65.78%   +7.44%     
===========================================================
  Files                           68       56      -12     
  Lines                         2194     1736     -458     
  Branches                       538      401     -137     
===========================================================
- Hits                          1280     1142     -138     
+ Misses                         912      592     -320     
  Partials                         2        2              

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[SuZhou-Joe]

Seems we do not need to manually add deep research agent paragraph.