feat(wave12): Add 6 optimization examples for pyo3-dspy-optimization (~9.8k lines)

Complete optimization workflow examples demonstrating DSPy teleprompters,
model versioning, evaluation, automated pipelines, and model comparison.

Examples:
1. bootstrap-fewshot (5 files, ~1,810 lines)
   - Run BootstrapFewShot teleprompter from Rust
   - TrainingDataset with load/split methods
   - Progress tracking with callbacks
   - Model metadata and saving
   - 50 training examples included

2. mipro-optimization (6 files, ~1,944 lines)
   - Run MIPROv2 teleprompter from Rust
   - Multi-prompt instruction optimization
   - Temperature scheduling
   - Candidate tracking with statistics
   - Train/dev split handling (50/20 examples)

3. model-versioning (4 files, ~1,551 lines)
   - Semantic versioning with semver crate
   - ModelRegistry with HashMap storage
   - Promotion workflow (dev → staging → production)
   - Status history and audit trail
   - Model comparison and rollback
   - Registry statistics

4. evaluation-framework (5 files, ~1,962 lines)
   - EvaluationHarness with multiple metrics
   - 5 built-in metrics (Accuracy, ExactMatch, F1, BLEU, ROUGE)
   - Statistical analysis (mean, std, percentiles)
   - Multi-model comparison
   - Statistical significance testing (Welch's t-test)
   - 30 diverse test examples

5. automated-pipeline (5 files, ~1,925 lines)
   - End-to-end optimization pipeline
   - Cron-based scheduling
   - Four stages (DataPrep, Training, Validation, Deployment)
   - Quality gates with thresholds
   - Notification system (webhooks, Slack)
   - Automatic deployment and rollback
   - Pipeline state persistence

6. model-comparison (4 files, ~1,474 lines)
   - Systematic comparison of 2-5 models
   - Statistical testing (t-test, Cohen's d)
   - Winner determination with weighted criteria
   - ASCII table and HTML report generation
   - Multiple test set support

Total: 29 files, ~10,666 lines
All examples compile successfully and demonstrate production-ready optimization patterns.

Author: rand

skills/rust/pyo3-dspy-optimization/resources/examples/automated-pipeline/Cargo.toml

@@ -0,0 +1,40 @@
+[package]
+name = "automated-pipeline"
+version = "0.1.0"
+edition = "2021"
+
+[dependencies]
+# PyO3 for Python-Rust interop
+pyo3 = { version = "0.20", features = ["auto-initialize"] }
+
+# Async runtime
+tokio = { version = "1.35", features = ["full"] }
+
+# Cron scheduling
+tokio-cron-scheduler = "0.10"
+
+# Error handling
+anyhow = "1.0"
+
+# Serialization
+serde = { version = "1.0", features = ["derive"] }
+serde_json = "1.0"
+serde_yaml = "0.9"
+
+# HTTP client for webhooks
+reqwest = { version = "0.11", features = ["json"] }
+
+# Logging
+tracing = "0.1"
+tracing-subscriber = { version = "0.3", features = ["env-filter"] }
+
+# Time handling
+chrono = { version = "0.4", features = ["serde"] }
+
+[[bin]]
+name = "automated-pipeline"
+path = "src/main.rs"
+
+[lib]
+name = "automated_pipeline"
+path = "src/lib.rs"