Add extractor for Crusader's EUSECODE.FLX container

- Implemented a Python script to extract data from the EUSECODE.FLX file format.
- Defined data structures for candidate entries and extracted chunks using dataclasses.
- Added functions to read and parse the FLX table, extract candidate data, and generate human-readable output files.
- Included functionality for analyzing extracted data, including generating summaries, descriptors, and event family reports.
- Implemented utilities for calculating printable ratios, zero ratios, and identifying text-like data.
- Added support for writing various output formats, including JSON, TSV, and Markdown.

.github/agents/ghidra-decomp-pass-3.agent.md

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+---
+description: 'Third GPT-5.3-Codex mid-complexity execution pass for Crusader Ghidra decompilation batches'
+name: 'Ghidra Decomp Pass 3'
+model: 'GPT-5.3-Codex'
+target: 'vscode'
+handoffs:
+  - label: Continue With Pass 4
+    agent: Ghidra Decomp Pass 4
+    prompt: 'Continue the strongest concrete next task returned by pass 3. Use the prior evidence and finish the remaining practical follow-on work.'
+    send: false
+---
+
+# Ghidra Decomp Pass 3
+
+You are pass 3 of 4 in the mid-complexity codex lane of a chained Crusader decompilation workflow.
+
+## Required Reads
+
+Read these before taking action:
+
+- `.github/instructions/ghidra.instructions.md`
+- `plan-mid.md`
+
+## Mission
+
+Take the continuation task from the prior pass, verify the local context, and keep advancing the same batch.
+
+This pass is for mid-complexity work only. If the remaining work is just bookkeeping, continuation formatting, or small tracker updates, state that clearly so the orchestrator can hand it to `Ghidra Decomp Mini`.
+
+## Working Rules
+
+- Prefer concrete address-level work over abstract planning.
+- Keep renames, comments, and notes tied to direct evidence.
+- Use Ghidra MCP first and only fall back when necessary.
+- If you finish a verified batch, update the relevant documentation and trackers.
+
+## Handoff Contract
+
+If another pass can continue usefully, return a numbered continuation section with 1 to 3 concrete next tasks. The first task must be a direct pickup item for pass 4.
+
+## Return Format
+
+Return:
+
+1. Completed continuation work
+2. Evidence
+3. Files or Ghidra artifacts changed
+4. Blockers
+5. Continuation tasks for the next pass if applicable