fix(Sudoku): add missing requirements + fix 29 broken navigation links

[jsboige]

Summary

Two fixes for the Sudoku series:

1. Missing dependencies in requirements.txt

• Sudoku/requirements.txt: added semantic-kernel>=0.9 and python-dotenv>=1.0 (used by Sudoku-17-LLM-Python)
• Search/requirements.txt: added scikit-image>=0.21, opencv-python-headless>=4.8, pillow>=10.0 (PyGad-EdgeDetection), python-dotenv>=1.0

2. Broken navigation links in 9 C# notebooks (29 fixes)

The Sudoku series was renumbered (2=Genetic->3, 3=ORTools->10, 4=Z3->12, etc.) but markdown navigation links in C# notebooks still pointed to old filenames. String-level replacement preserving original JSON formatting.

Notebook	Links fixed
Sudoku-1-Backtracking	4
Sudoku-4-SimulatedAnnealing	6
Sudoku-5-PSO	2
Sudoku-6-AIMA-CSP	2
Sudoku-7-Norvig	3
Sudoku-8-HumanStrategies	2
Sudoku-9-GraphColoring	2
Sudoku-13-SymbolicAutomata	5
Sudoku-14-BDD	3

Verification

• Diff is clean: only link target strings changed (41 insertions, 41 deletions)
• No JSON reformatting (string-level replacement, not json.dump)
• All 29 fixed links now point to existing .ipynb files

Co-Authored-By: Claude Opus 4.8 noreply@anthropic.com

[github-actions]

Notebook PR Validation: PASS

• Notebooks checked: 9
• Code cells validated: 100
• Result: All passed

Checks: H.1 (no errors), H.3 (execution_count), C.1 (no banned patterns)
Non-Python kernels (.NET/Lean): C.1 + errors only (execution_count advisory)
QuantConnect notebooks: C.1 + errors only (require QC Cloud for execution)

[clusterManager-Myia]

[Hermes] — COMMENT_WITH_CONCERNS

Trois points a verifier avant merge:

1. Nouvelles dependances dans requirements.txt — scikit-image, opencv-python-headless et python-dotenv sont ajoutes. Le commentaire indique python-dotenv pour 'API keys'. Justification: ces deps sont-elles effectivement utilisees dans des notebooks Search existants, ou c'est preparatoire ? Si aucun notebook Search n'importe actuellement opencv/scikit-image, ajouter des deps inutilisees alourdit l'environment.

2. Liens de navigation corriges — 29 liens fixes dans les notebooks Sudoku. Concern: le lien dans Sudoku-1-Backtracking-Csharp.ipynb pointe vers 'Sudoku-3-Genetic-Csharp.ipynb' au lieu de 'Sudoku-2-Genetic-Csharp.ipynb'. Verifier que la numerotation est correcte et que les fichiers cibles existent.

3. CI catalog drift FAIL — le COURSE_CATALOG n'est pas synchronise avec les changements reels dans certains notebooks. Rebase ou regenerer le catalog pour corriger.

[jsboige]

Superseded by #2006 (conclusions + catalog fix) and #2018 (outputless fix + re-exec + IP cleanup, merged).