docs: fix broken links and stale notebook references (#660)

docs/cookbook.md

@@ -48,7 +48,6 @@ Deep dive into advanced features, customization, and complex workflows.
 - **[Conflict Resolution](https://github.com/semantica-agi/semantica/blob/main/cookbook/introduction/17_Conflict_Detection_and_Resolution.ipynb)** — Strategies for handling contradictory information from multiple sources. Topics: Truth Discovery, Voting, Confidence · *Advanced*
 - **[Multi-Format Export](https://github.com/semantica-agi/semantica/blob/main/cookbook/advanced/05_Multi_Format_Export.ipynb)** — Exporting to RDF, OWL, JSON-LD, and NetworkX formats. Topics: Serialization, Interoperability · *Intermediate*
 - **[Multi-Source Integration](https://github.com/semantica-agi/semantica/blob/main/cookbook/advanced/06_Multi_Source_Data_Integration.ipynb)** — Merging data from disparate sources into a unified graph. Topics: Entity Resolution, Merging, Fusion · *Advanced*
-- **[Pipeline Orchestration](https://github.com/semantica-agi/semantica/blob/main/cookbook/advanced/07_Pipeline_Orchestration.ipynb)** — Building robust, automated data processing pipelines. Topics: Workflows, Automation, Error Handling · *Advanced*
 - **[Reasoning and Inference](https://github.com/semantica-agi/semantica/blob/main/cookbook/advanced/08_Reasoning_and_Inference.ipynb)** — Using logical reasoning to infer new knowledge from existing facts. Topics: Logic Rules, Inference Engines · *Advanced*
 - **[Temporal Knowledge Graphs](https://github.com/semantica-agi/semantica/blob/main/cookbook/advanced/10_Temporal_Knowledge_Graphs.ipynb)** — Modeling and querying data that changes over time. Topics: Time Series, Temporal Logic, Allen Algebra · *Advanced*
 

docs/governance.md

@@ -74,7 +74,7 @@ Semantica follows **Semantic Versioning** (`MAJOR.MINOR.PATCH`):
 
 ## License
 
-MIT License: see [LICENSE](https://github.com/semantica-agi/semantica/blob/main/LICENSE) and the [License page](license).
+MIT License: see [LICENSE](https://github.com/semantica-agi/semantica/blob/main/LICENSE) and the [License page](project-license).
 
 
 ## See Also

docs/learning-more.md

@@ -61,7 +61,7 @@ Whether you're running your first pipeline or deploying Semantica in production,
         [Architecture Guide](architecture): four-layer design, extension points, and design decisions.
       </Step>
       <Step title="Temporal intelligence">
-        [Temporal Graphs notebook](https://github.com/semantica-agi/semantica/blob/main/cookbook/advanced/04_Temporal_Graphs.ipynb): `valid_from`/`valid_until`, Allen interval algebra, point-in-time queries.
+        [Temporal Graphs notebook](https://github.com/semantica-agi/semantica/blob/main/cookbook/advanced/10_Temporal_Knowledge_Graphs.ipynb): `valid_from`/`valid_until`, Allen interval algebra, point-in-time queries.
       </Step>
       <Step title="Ontology-driven knowledge bases">
         [Ontology notebook](https://github.com/semantica-agi/semantica/blob/main/cookbook/introduction/14_Ontology.ipynb): auto-generation, SHACL validation, Ontology Hub (v0.5.0).

docs/vector_stores/pgvector.md

@@ -387,4 +387,4 @@ TEST_PGVECTOR_URL="postgresql://postgres:postgres@localhost:5432/test" \
 - [pgvector Documentation](https://github.com/pgvector/pgvector)
 - [PgVector Python Client](https://github.com/pgvector/pgvector-python)
 - [psycopg Documentation](https://www.psycopg.org/)
-- [Vector Store Usage Guide](../vector_store_usage)
+- [Vector Store Module](../reference/vector_store)