Add all 23 GoF design pattern implementations

02-structural/bridge/README.md

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+# Bridge Design Pattern — Java Example
+
+**Pattern:** Structural → Bridge
+**Article:** https://ankurm.com/bridge-design-pattern-java/
+
+## What this example shows
+
+Decouples remote controls (Abstraction) from devices (Implementation). A basic remote and an advanced remote each work with any device (TV, Radio) without creating N×M subclasses.
+
+## How to run
+
+```bash
+javac bridge/*.java -d out/bridge
+java -cp out/bridge bridge.Main
+```
+
+Requires Java 25.
+
+## Post Section ↔ File Mapping
+
+| Post Section | File(s) |
+|---|---|
+| Step 1 — The Implementor Interface | `Device.java` |
+| Step 2 — Concrete Implementors (TV and Radio) | `TV.java`, `Radio.java` |
+| Step 3 — The Abstraction (RemoteControl) | `RemoteControl.java` |
+| Step 4 — Refined Abstraction (AdvancedRemote) | `AdvancedRemote.java` |
+| Wiring It Together: Main Demo | `Main.java` |
+
+Note: the "Class Explosion Problem — Visualised" pseudocode and the JDBC/SLF4J snippets shown in the article are illustrative only — they are not part of this repository's runnable example.
+
+Article: https://ankurm.com/bridge-design-pattern-java/
+All patterns: https://ankurm.com/design-patterns-java/