rewrite planoai CLI in Rust

Add crates/plano-cli/ as a full Rust rewrite of the Python CLI.
Binary name: planoai. All subcommands ported: up, down, build,
logs, cli-agent, trace, init. Config validation and Tera template
rendering replace the Python config_generator. CI updated to use
cargo test/build instead of Python test jobs.

crates/plano-cli/templates/coding_agent_routing.yaml

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+version: v0.3.0
+
+model_providers:
+  # OpenAI Models
+  - model: openai/gpt-5-2025-08-07
+    access_key: $OPENAI_API_KEY
+    routing_preferences:
+      - name: code generation
+        description: generating new code snippets, functions, or boilerplate based on user prompts or requirements
+
+  - model: openai/gpt-4.1-2025-04-14
+    access_key: $OPENAI_API_KEY
+    routing_preferences:
+      - name: code understanding
+        description: understand and explain existing code snippets, functions, or libraries
+  # Anthropic Models
+  - model: anthropic/claude-sonnet-4-5
+    default: true
+    access_key: $ANTHROPIC_API_KEY
+
+  - model: anthropic/claude-haiku-4-5
+    access_key: $ANTHROPIC_API_KEY
+
+  # Ollama Models
+  - model: ollama/llama3.1
+    base_url: http://localhost:11434
+
+
+# Model aliases - friendly names that map to actual provider names
+model_aliases:
+  # Alias for a small faster Claude model
+  arch.claude.code.small.fast:
+    target: claude-haiku-4-5
+
+listeners:
+  - type: model
+    name: model_listener
+    port: 12000
+
+tracing:
+  random_sampling: 100

crates/plano-cli/templates/conversational_state.yaml

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+version: v0.3.0
+
+agents:
+  - id: assistant
+    url: http://localhost:10510
+
+model_providers:
+  # OpenAI Models
+  - model: openai/gpt-5-mini-2025-08-07
+    access_key: $OPENAI_API_KEY
+    default: true
+
+  # Anthropic Models
+  - model: anthropic/claude-sonnet-4-20250514
+    access_key: $ANTHROPIC_API_KEY
+
+listeners:
+  - type: agent
+    name: conversation_service
+    port: 8001
+    router: plano_orchestrator_v1
+    agents:
+      - id: assistant
+        description: |
+          A conversational assistant that maintains context across multi-turn
+          conversations. It can answer follow-up questions, remember previous
+          context, and provide coherent responses in ongoing dialogues.
+
+# State storage configuration for v1/responses API
+# Manages conversation state for multi-turn conversations
+state_storage:
+  # Type: memory | postgres
+  type: memory
+
+tracing:
+  random_sampling: 100

crates/plano-cli/templates/filter_chain_guardrails.yaml

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+version: v0.3.0
+
+agents:
+  - id: rag_agent
+    url: http://rag-agents:10505
+
+filters:
+  - id: input_guards
+    url: http://rag-agents:10500
+    type: http
+    # type: mcp (default)
+    # transport: streamable-http (default)
+    # tool: input_guards (default - same as filter id)
+  - id: query_rewriter
+    url: http://rag-agents:10501
+    type: http
+    # type: mcp (default)
+    # transport: streamable-http (default)
+    # tool: query_rewriter (default - same as filter id)
+  - id: context_builder
+    url: http://rag-agents:10502
+    type: http
+
+model_providers:
+  - model: openai/gpt-4o-mini
+    access_key: $OPENAI_API_KEY
+    default: true
+  - model: openai/gpt-4o
+    access_key: $OPENAI_API_KEY
+
+model_aliases:
+  fast-llm:
+    target: gpt-4o-mini
+  smart-llm:
+    target: gpt-4o
+
+listeners:
+  - type: agent
+    name: agent_1
+    port: 8001
+    router: plano_orchestrator_v1
+    agents:
+      - id: rag_agent
+        description: virtual assistant for retrieval augmented generation tasks
+        filter_chain:
+          - input_guards
+          - query_rewriter
+          - context_builder
+tracing:
+  random_sampling: 100

crates/plano-cli/templates/preference_aware_routing.yaml

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+version: v0.3.0
+
+model_providers:
+
+  - model: openai/gpt-4o-mini
+    access_key: $OPENAI_API_KEY
+    default: true
+
+  - model: openai/gpt-4o
+    access_key: $OPENAI_API_KEY
+    routing_preferences:
+      - name: code understanding
+        description: understand and explain existing code snippets, functions, or libraries
+
+  - model: anthropic/claude-sonnet-4-20250514
+    access_key: $ANTHROPIC_API_KEY
+    routing_preferences:
+      - name: code generation
+        description: generating new code snippets, functions, or boilerplate based on user prompts or requirements
+
+listeners:
+  - type: model
+    name: model_listener
+    port: 12000
+
+tracing:
+  random_sampling: 100

crates/plano-cli/templates/sub_agent_orchestration.yaml

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+version: v0.3.0
+
+agents:
+  - id: weather_agent
+    url: http://langchain-weather-agent:10510
+  - id: flight_agent
+    url: http://crewai-flight-agent:10520
+
+model_providers:
+  - model: openai/gpt-4o
+    access_key: $OPENAI_API_KEY
+    default: true
+  - model: openai/gpt-4o-mini
+    access_key: $OPENAI_API_KEY # smaller, faster, cheaper model for extracting entities like location
+
+listeners:
+  - type: agent
+    name: travel_booking_service
+    port: 8001
+    router: plano_orchestrator_v1
+    agents:
+      - id: weather_agent
+        description: |
+
+          WeatherAgent is a specialized AI assistant for real-time weather information and forecasts. It provides accurate weather data for any city worldwide using the Open-Meteo API, helping travelers plan their trips with up-to-date weather conditions.
+
+          Capabilities:
+            * Get real-time weather conditions and multi-day forecasts for any city worldwide using Open-Meteo API (free, no API key needed)
+            * Provides current temperature
+            * Provides multi-day forecasts
+            * Provides weather conditions
+            * Provides sunrise/sunset times
+            * Provides detailed weather information
+            * Understands conversation context to resolve location references from previous messages
+            * Handles weather-related questions including "What's the weather in [city]?", "What's the forecast for [city]?", "How's the weather in [city]?"
+            * When queries include both weather and other travel questions (e.g., flights, currency), this agent answers ONLY the weather part
+
+      - id: flight_agent
+        description: |
+
+          FlightAgent is an AI-powered tool specialized in providing live flight information between airports. It leverages the FlightAware AeroAPI to deliver real-time flight status, gate information, and delay updates.
+
+          Capabilities:
+            * Get live flight information between airports using FlightAware AeroAPI
+            * Shows real-time flight status
+            * Shows scheduled/estimated/actual departure and arrival times
+            * Shows gate and terminal information
+            * Shows delays
+            * Shows aircraft type
+            * Shows flight status
+            * Automatically resolves city names to airport codes (IATA/ICAO)
+            * Understands conversation context to infer origin/destination from follow-up questions
+            * Handles flight-related questions including "What flights go from [city] to [city]?", "Do flights go to [city]?", "Are there direct flights from [city]?"
+            * When queries include both flight and other travel questions (e.g., weather, currency), this agent answers ONLY the flight part
+
+tracing:
+  random_sampling: 100